Dsp thrissur ch3

District Spatial Plan - Thrissur POPULATION

Department of Town & Country Planning, KeralaDepartment of Town & Country Planning, Kerala

The Population parameter serves as the base in

all the development endeavors. One of the objectives

of all sorts of planning is to provide maximum good to

maximum number of people. Hence it is imperative to

analyze the population by studying the following pa-

rameters - size of population, its growth trends, popu-

lation density, population concentration pattern, mi-

gration details and population projection – which are

described in this chapter.

3.1 POPULATION SIZE

As per 2001 census, the population of Kerala is

31841374 persons which included 15468614 males and

1,63,72,760 females. Although Kerala accounts for only

Chapter – 3POPULATION

Table 3.1: Population – Comparison with the StateDescription Kerala Thrissur % w.r t. Kerala

Total Population 31841374 2974232 9.34

Males 15468614 1422052 9.19

Females 16372760 1552180 9.48

Urban Population 8266925 839433 10.15

Males 4017332 403737 10.05

Females 4249593 435696 10.25

Rural Population 23574449 2134799 9.06

Males 11451282 1018315 8.89

Females 12123167 1116484 9.21

Source: Census 2001

1% of the total area of India, it contains about 3% of the

country’s population.

The total population of Thrissur district as per

2001 census is 2974232, which is 9.34% of the total popu-

lation of the State. Area wise Thrissur district contrib-

ute 7.8% of the state area. The total number of male

and female population in Thrissur district is 1422052

and 1552180 respectively. The District is placed in the

4th position as far as population size is considered.

The population comparison with the state is given

in Table 3.1. From the table it is clear that the total ur-

ban population of Thrissur district is 10.15% of that of

State and the rural population is 9.06% that of State.

23

admin

Text Box

<< CHAPTER 2

admin

Text Box

< CONTENTS >

POPULATION District Spatial Plan - Thrissur


A comparison of total population of the districts

surrounding Thrissur district is shown in Figure 3.1.

The figure shows that when compared to the sur-

Fig 3.1: Population size - Comparison with surrounding districts

Fig 3.2: Population – Urban & Rural - Comparison with surrounding districts

Source: Census 2001

rounding districts, Thrissur is placed in the third posi-

tion in population size. The population size of

Malappuram and Ernakulam districts are higher than

that of Thrissur.

24



Fig 3.3: Population size of State - Temporal Variation

27 lakhs indicating a decline in the population growth

rate of the state.

The decadal variation in the size of population of

the District over the last three decades is shown in Fig-

Fig 3.4: Population size of Thrissur - Temporal Variation

25

According to 2001 census, the total

urban population of Thrissur district is

839433 which is 28% of the total popula-

tion of the district. A comparison of per-

centage of urban and rural population of

Thrissur district with surrounding districts

is shown in Figure 3.2.

It is clear that urban population of

Thrissur district (28%) is more than that of

Malappuram and Palakkad district and less

than that of Ernakulam district (48%).

Thrissur comes in the 2nd place among the

surrounding districts.

The decadal variation in the size of

population of the State over the last three

decades is shown in Figure 3.3.

From the figure, it is clear that though there is an

increase of about 36 lakhs population from 1981 to 1991,

the increase of population over the last decade is only

Sour

ce:

Cen

sus

2001



ure 3.4.

From the figure, it is clear that though there is an

increase of about 3 lakhs population per decade from

1981 to 1991, the increase of population over the last

decade is only 2.4 lakhs indicating a decline in the popu-

lation growth rate of the district.

The total Population is increasing during 1981 -

2001 period both in Kerala and Thrissur. But the per-

centage of increase in population is decreasing both in

Kerala and Thrissur District during the same period. It

clearly indicates that Thrissur district also follows the

same growth pattern as that of State.

1 Malappuram 3096330 3625471 28.87 17.22

2 Wayanad 672128 780619 21.32 17.04

3 Kasargod 1071508 1204078 22.78 12.3

4 Kozhikode 2619941 2879131 16.69 9.87

5 Palakkad 2382235 2617482 16.52 9.86

6 Thiruvananthapuram 2946650 3234356 13.5 9.78

7 Ernakulam 2817236 3105798 11.42 9.09

8 Thrissur 2737311 2974232 12.2 8.66

9 Kollam 2407566 2585208 10.68 7.33

10 Kannur 2251727 2408956 16.63 7.13

11 Idukki 1078066 1129221 10.45 6.96

12 Kottayam 1828271 1953646 7.71 6.76

13 Alappuzha 2001217 2109160 7.28 5.21

14 Pathanamthitta 1188332 1234016 5.6 3.72

Kerala 29098518 31841374 14.32 9.42

No DistrictPopulation

1991 2001

Growth Rate (G.R)1981-91 1991-2001

Table 3.2: Population and Growth rate of Population Districts wise

Source: Census 2001

3.2 GROWTH RATE OF POPULATION

The growth rate of population among the districts

of Kerala during 1981-91 and 1991-2001 is shown in Fig-

ure 3.5. and the details are given in Table 3.2. Among

the districts, Malappuram has the highest growth rate

of population of 17.22% and Pathanamthitta has the

lowest growth rate of population of 3.72%. All districts

in Kerala shows a decrease in decadal growth rate dur-

ing 1991-2001 compared to 1981-1991 decade. The

northern districts (Malappuram, Wayanad, Kasaragode,

Kozhikkode and Palakkad) show higher population

growth rate in 1991 and 2001.

26



Fig 3.5: District wise distribution of population growth rate 1981-91 and 1991 - 2001

<7.007.01 - 14.0014.01 - 21.0021.01 - 28.00>28.00

Legend<7.007.01 - 14.0014.01 - 21.0021.01 - 28.00>28.00

Legend

N

Fig 3.6: Population growth rate comparison with State - 2001 census

Decadal growth rate of population of Thrissur dis-

trict is 8.66% as per 2001 census which is less than the

average growth rate of 9.42% of the State. The com-

G.R. 2001 - Comparison with State

G.R

Source: Census 2001

parison of growth rate of population of district with the

state is shown in Fig 3.6.

27

Population growth rate 1981-91Legend

Population growth rate 1991-2001Legend



Table 3.3: Growth rate of Population – Comparison with State

G.R 1971-1981 1981-91 1991-01

Kerala 19.24 14.32 9.42

Thrissur 14.64 12.2 8.66

Source: Census 2001

Fig 3.7: Population growth rate comparison with surrounding districts

Growth Rate of Population - 2001 Census

Source: Census 2001

The spatial distribution of the growth rate of

population during last three decades is shown in figure

3.9, figure 3.10 and figure 3.11. From the figures, it is

clear that the growth rates of population of most of the

LSGs of the district are declining from 1981 to 2001. But

the population growth rate of Irinjalakkuda Municipal

Council, Thrissur Municipal Corporation and the Grama

Panchayats of Adat, Arimpur, Avinissery, Kaiparamba,

Kolazhi, Madakkathara, Mulamku-nnathukkavu,

Mundathikode, Puthur are showing increasing trend

from 1981 to 2001. (See fig 3.12).This may be due to

large increase in the population during 1981 - 2001 in

that area and also due to the spatial location of these

LSGs. The analysis of spatial location of these LSGs

shows that they are either urban or located nearby by

the urban areas. Moreover most of these LSGs are well

connected with higher order road network.

During 1971-81, the growth rates of population

of most of the LSGs of the district was in the range 15-

20% (figure 4.9). Kodungallur Municipal council showed

highest growth rate (31.33%) and Irinjalakkuda munici-

pal council (2.72%) showed lowest growth rate.

During 1981-91, the growth rate pattern has

widely changed. From Fig. 3.10, we can see a sudden

decrease in the pattern of growth rate. Growth rates of

population of most of the LSGs were in the range 10-

15%. High growth rate of Population in coastal region

during the period (in the range 15-20%) shows the

strength of the economic base once existed in there.

But during 1991-2001, growth rate of population in

coastal region is decreased. This in turn indicates the

Comparing Thrissur

district with surrounding

districts, Thrissur shows a

lower growth rate. And it is

shown in Fig.3.7.

The temporal varia-

tion of the population

growth rate of the district

and its comparison with

the State figures are shown

in Figure 3.8 and the details

are given in Table 3.3. The

figure shows that the popu-

lation growth rate of the

district as well as that of

state is declining.

28



Fig 3.8: Population growth rate - comparison with State - Temporal Variation

Source: Census 2001

Fig 3.9: Population growth rate 1971-81 LSGs Wise

29



Fig 3.10: Population growth rate 1991- Local body wise

weakening of the economic base of this area.

Puthur Grama Panchayat shows highest growth

rate (24.14) and Athirapilly Grama Panchayat (1.20)

shows lowest growth rate of population in 1991.

The spatial distribution of the growth rates of

population during 2001 shows a definite spatial pat-

tern and it is shown in Figure 3.11. The coastal region

shows a growth rate of 5-10%, whereas the central re-

gion shows a population growth rate of 10 to 15%.

Kolazhy Grama Panchayat shows highest growth rate

and Chowannur Grama Panchayat shows lowest growth

rate.

The growth rate of population in the LSGs adja-

cent to the urban LSGs (especially Thrissur Municipal

Corporation, Chavakkad Municipal Council,

Kunnamkulam Municipal Council and Guruvayur

Muncipal Council) shows higher growth rate indicating

possibility of out migration from the urban areas to the

immediate hinter land as well as the possibility of im-

migrants to the urban areas and settle down the near

by Grama Panchayat. Fig. 3.13. shows distribution of

LSGs with highest growth rate of population.

At the same time, three Grama Panchayats

(Chowannur, Manalur, and Nadathara) show negative

population growth rate while comparing the popula-

tion figures corresponding to 1991 census and 2001 cen-

sus without considering the change in geographical area

of the LSGs.

The spatial location of these Grama Panchayats

is shown in fig 3.14. But while comparing the area of

the Grama Panchayat, it can be seen that out of the

three Grama Panchayat Chowannoor and Nadathara

shows decrease in the area due to merging of part of

the area with neighbouring Municipal Council / Munici-

pal Corporation. Hence the total population figure of

these Grama Panchayat shows a decrease during the

period 1991-2001. The area and population variation is

given in table 3.4.

30



Fig 3.11: Population growth rate 2001- LSGs wise

Fig 3.12: LSGs showing increase of G.R from 1981-2001

31



1 Chowannur 25496 15426 10070 18.39 13.7 4.69

2 Manalur 31230 31179 51 18.22 18.12 0.10

3 Nadathara 31857 27459 4398 20.91 17.22 3.69

Population

1991 2001Difference in

Population

Area

1991 2001Difference in

area

Source: Census 2001

Fig 3.13: LSGs with highest Growth rate of population

Map Generated for IDDP by TCPD, Thrissur Unit

1 Chowannur 15226 15426 1.31

2 Nadathara 26235 27459 4.66

No. Name of LSGPopulation

1991(correspond to 2001Area) 2001 GR

Source: Census 2001

Table 3.5:Interpolated population and corresponding growthrate of Grama Panchayats showingnegative growth rate due to change in area

Table 3.4: Population & Area Details of Grama Panchayats showing negative growth rate during1991-2001

32

Name of LSG



Fig 3.14: LSGs with negative growth rate based on 1991-2001census of population

Map Generated for IDDP by TCPD, Thrissur Unit

Area of Chowannur and Nadathara Grama

Panchayats is reduced in 2001 when compared with

1991. It is due to the merging of some wards of

Chowannur Grama Panchayat with Kunnamkulam Mu-

nicipal Council and that of Nadathara Grama Panchayat

with Thrissur Municipal Corporation. Table 3.5 shows

the details of growth rate in these Grama Panchayats

based on interpolation of population of 1991, corre-

sponding to the 2001 area. This shows that the Grama

Panchayats chowannur and Nadathara also has positive

growth rate of population. Hence the negative growth

rate exhibited by these Grama Panchayats are ex-

plained. The modified growth rate of above Grama

Panchayat is shown in Fig 3.15. However Manaloor

Grama Panchayat shows a slight decrease in the abso-

lute population (only 51 persons ) and hence shows a

negative growth rate.

3.3 POPULATION DENSITY

Higher population density puts greater pressure

on infrastructure and environment but reduces the per

capita costs of supply of public goods and services.

Gross population density and net population

density of the district are analyzed. Gross population

density is calculated by dividing the total population

with the geographical area, whereas the net popula-

tion density is calculated by dividing the total popula-

tion with the net area which is calculated by subtract-

ing the un-inhabitable areas like water body, forest,

paddy, rubber plantation, marshy and wasteland etc.

from the geographical area.

3.3.1 GROSS POPULATION DENSITY

As per 2001 Census, the density of population for

India as a whole is 324 persons per sq. km. where as in

Kerala it is 819 persons per sq. km. Among the Indian

States, Kerala is in third position in respect of density,

the first being West Bengal with a density of 904 per-

sons per sq.km.

A comparison of the gross population density

among the districts in the State in 1991 and 2001 is

33



Fig 3.15: District wise distribution of Gross density of population growth rate

ThrissurThrissurThrissurThrissur

Fig 3.16: Population density - comparison with State (2001)

shown in Figure 3.15.

Among the Districts in Kerala, Alappuzha has the

highest density with 1489 persons per sq. km and Idukki

has the lowest density with 252 persons per sq. km ac-

cording to 2001census. Eight districts have densities

higher than the State average and the remaining six

districts have densities lower than the State average.

It can be seen that, except in the Southern dis-

tricts the gross population density increases during

1991-2001. The coastal districts show higher gross popu-

lation density in 1991 as well as in 2001. Thrissur district

comes under 7th place.

The gross population density of Thrissur district

is 981 pp.sq. km. which is higher than the state average

of 819 pp sq. km. The comparison of the population

density with the state is shown in Fig. 3.16.

34



The comparison of the population density with

the surrounding districts is shown in Figure 3.17. The

gross population density of Thrissur district is less than

Fig 3.17: Population density - comparison with surrounding districts (2001)

Source: Census 2001

those of Ernakulam and Malappuram and greater than

that of Palakkad district.

Fig 3.18: Gross Population density 2001- LSG wise

35



The LSGs wise distribution of the gross popula-

tion density of Thrissur district is shown in Fig. 3.18. It

shows a clear distinction between the gross popula-

tion density in the coastal region, central region and

the eastern high land regions of the district. The gross

population density of the Grama Panchayats in the

coastal belt are the highest (in the range of 1500-3200

persons per sq. km. ), whereas the gross population

density of the central region is in the range of 750 - 1500

persons per sq. km. and that of the eastern hill region is

less than 750 persons per sq. km. The gross population

density is maximum in Thrissur Municipal Corporation

which is located in central region. All the Municipal

Council and area near to Thrissur Municipal Corpora-

tion also shows higher gross population density. This

may be due to the educational, medical and infrastruc-

ture facilities available in the urban areas of the dis-

trict.

Based on the range of population density, LSGs

of the district can be grouped as given in Table 3.6.

Table 3.6: Grouping of LSGs based on the range of gross population density 2001

1 Thrissur Muncipal Corporation

2 Methala

3 Chavakkad Municipal Council

4 Guruvayur Municipal Council

5 Eriyad

6 Edavilangu

7 Irinjalakkuda Municipal Council

8 Avinissery

9 Kadapuram

10 Kaipamangalam

11 Orumanayur

12 Thalikulam

13 Vadanappilly

14 Nattika

15 Pookode

16 Perinjanam

17 Pavaratty

Sl.No. Name of Local Government Range of Gross population density(ppn/sq.km)

>3000

2250-3000

1500-2250

36



18 Valappad

19 Mathilakam

20 Punnayur

21 Kodungallur Municipal Council

22 Chalakkudy Municipal Council

23 Sreenarayanapuram

24 Thaikkad

25 Nenmanikkara

26 Vadakkekad

27 Vallachira

28 Cherpu

29 Esdathiruthy

30 Manalur

31 Punnayurkulam

32 Kolazhy

33 Thanniyam

34 Anthikkad

35 Nadathara

36 Chowannur

37 Kandanissery

38 Elavally

39 Kunnamkulam Municipal Council

40 Kattur

41 Engandiyur

42 Choondal

43 Kattakampal

44 Pudukkad

1500-2250

750 - 1500

37



45 Alagappanagar

46 Porathissery

47 Kodakara

48 Koratty

49 Parappukkara

50 Kaiparamba

51 Vellangallur

52 Kadukkutty

53 Paralam

54 Venkitangu

55 Arimpur

56 Adat

57 Vallatholenagar

58 Alur

59 Mullassery

60 Mala

61 Melur

62 Karalam

63 Kadavallur

64 Annamanada

65 Chazhur

66 Poyya

67 Wadakkanchery

68 Avanur

69 Mundathikode

70 Poomangalam

71 Porkulam

72 Thrikkur

73 Kuzhur

74 Velukkara

75 Madakkathara

750 - 1500

38



76 Tholur

77 Padiyur

78 Puthenchira

79 Kadangode

80 Erumapetty

81 Velur

82 Mulamkkunnathukkavu

83 Desamangalam

84 Pariyaram

85 Panjal

86 Thiruvilwamala

87 Kondhazhi

88 Pazhayannur

89 Chelakkara

90 Varavoor

91 Puthur

92 Thekkumkkara

93 Mattathur

94 Muriyad

95 Mullurkkara

96 Varandarappilly

97 Kodassery

98 Pananchery

99 Athirappilly

<750

Source: Census 2001

Thirteen Grama Panchayats in the eastern high

land region fall within the lowest density range group

with a minimum of 20 persons / Sq.km. in Athirappilly

Grama Panchayat, whereas three LSGs including Thrissur

Municipal Corporation falls in the highest population

density range with maximum of 3130. Majority of the

LSGs (45 No.) falls within the population density range

of 750-1500 persons/sq.km. The remaining LSGs falls

within the range of 1500- 3000 pp.sq.km.

3.3.2 NET POPULATION DENSITY

The average net population density of the dis-

trict is calculated as 1784 pp.sq.km. The spatial distri-

bution of the net population density is shown in Fig.

3.19.

39



Highest net population density range exists

(2000-3000) in the coastal plains. Lowest net popula-

tion density is seen in Athirapilly (less than 1000). How-

ever the net population density is highest in Thrissur

Municipal Corporation (4349.73 pp.sq.km). Net popu-

lation density of all Municipal Councils are more than

2000pp Sq.km. except Chalakkudy Municipal Council

(1991.26 pp.sq.km). This clearly indicates that net popu-

lation density in urban areas is more than that of rural

areas. In other words habitable area available per per-

son in urban areas as well as in some of the coastal LSGs

of the district is much less compared to the remaining

parts of the district resulting in increased pressure on

land at urban as well as coastal areas of the district.

3.4 SEX RATIO

Kerala has a unique position with regard to sex

Fig 3.19: Net Population density 2001- LSG wise

ratio. In all the Census, females outnumbered males in

Kerala, which is contrary to all India pattern. The sex

ratio of Kerala has gradually increased from 1004 in 1901

to 1028 in 1951 and then to 1058 in 2001. The 2001 Cen-

sus shows that Kerala is the only state in India where

sex ratio is above the equality ratio and is a 100-year

high with 1058 females per 1000 males.

District-wise analysis shows that the highest sex

ratio of 1094 is in Pathanamthitta District and the low-

est in Idukki District with 993 females per 1000 males.

Among the surrounding districts, Thrissur has the high-

est sex ratio (Fig 3.20)

In 1991 census, Thrissur district had a sex ratio of

1085 as against 1036 for the state during the correspond-

ing period. Thrissur district had the highest sex ratio

among the districts in 1991. In 2001 census, Sex ratio of

Thrissur district is 1092 which is higher than the State

40



value of 1058. Thrissur district has the second rank

among the districts in respect of sex ratio. The com-

parison of sex ratio of Thrissur district with that of the

state in 1991 and 2001 is shown in Fig. 3.21.

Fig 3.21: Comparison of sex ratio with State

Source: Census 2001

Fig 3.20 Comparison of sex ratio

Source: Census 2001

Within the district, the sex ratio varied from 1064

in Thrissur taluk to 1154 in Chavakkad taluk in 2001. The

highest sex ratio is in Chavakkad taluk (1154), followed

by Kodungallur (1116), Talappilly taluk (1104),

41



Mukundapuram taluk (1068) and Thrissur taluk (1064).

Generally rural areas have higher proportion of females

than that of urban areas. Thrissur District confirms this

pattern.

A higher value of sex ratio could mean that there

is out migration of male (for jobs etc.) population from

district.

The sex ratio in the age group of 0-6 (Figure 3.22)

of the district is 958 which is less than that of the aver-

Fig 3.22 Sex ratio – age group 0 – 6 Source: Census 2001

age value of the sex ratio of the State (960) in this age

group. Reason if any for the same has to be explored.

The variation in sex ratio of 0-6 age group in the

surrounding districts is less (963-954) than the varia-

tion in general value of sex ratio (1092-1017), indicat-

ing that at birth the sex ratio is more or less uniform

irrespective of districts, but it changes later due to the

migration pattern.

3.4.1 AGE SEX PYRAMID

The most important demographic characteristic

of a population is its age-sex structure. Age-sex pyra-

mids (also known as population pyramids) graphically

display this information to improve understanding and

ease comparison.

Age group wise population of Thrissur district is

shown in Fig. 3.23 The age sex pyramid of state Kerala

and Thrissur district is shown in Fig 3.24 and Fig. 3.25.

From the figures it is clear that sex pyramid of the Dis-

trict is more or less similar to that of the State.

42



Fig 3.23: Age group wise population – Thrissur District

Source: Census 2001

Fig 3.24: Age Sex Pyramid – Kerala State

0-10

20-30

40-50

60-70

80-90

Source: Census 2001

43



Fig 3.25: Age Sex Pyramid – Thrissur District

Source: Census 2001

3.5 POPULATION CONCENTRATION PATTERN

The following procedure is adopted to find out

the population concentration pattern.

1. Find the population density of each LSG

2. Arrange the LSGs in the descending order of

density

3. Find the cumulative of the population

4. Identify the LSGs where 1/3rd of the cumula-

tive total population meets.

5. LSGs from top to the LSGs identified in step 4

are the LSGs where 1/3rd population is con-

centrated.

6. Similarly identify the LSGs where ½ and 2/3rd

population is concentrated.

The population concentration patterns of Thrissur

district in 1971, 1981, 1991 and 2001 are shown in Fig-

ures 3.26, 3.27, 3.28 and 3.29 respectively.

Considering the population concentration pat-

tern of Thrissur District in 1971 (Figure 3.26), it is clear

that 1/3RD of the cumulative population is distributed

in 23 LSGs which include four Municipal Councils ex-

cept Kodungallur and Kunnamkulam and Thrissur Mu-

nicipal Corporation, ½ of the cumulative population is

distributed in 42 LSGs which include five Municipal

Councils except Kunnamkulam and Thrissur Municipal

Corporation and 2/3rd of the cumulative population is

distributed in 59 LSGs which include all Municipal Coun-

cils and Thrissur Municipal Corporation. These LSGs are

located along coastal areas and the existing statutory

urban areas.


tern of Thrissur District in 1981 (Fig. 3.27), it is clear that

1/3RD of the cumulative population is distributed in 23

LSGs which include five Municipal Councils (except

Kunnamkulam) and the Municipal Corporation, ½ of the

cumulative population is distributed in 42 LSGs which

include five Municipal Councils and one Municipal Cor-

poration except Kunnamkulam Municipal Council and

44



Fig 3.26: Population concentration pattern - 1971


45





2/3rd of the cumulative population is distributed in 59

LSGs which include all Municipal Councils and Munici-

pal Corporation. These 59 LSGs out of 99 LSGs are lo-

cated along coastal areas and near to the existing statu-

tory urban areas. In 1971 Kodungallur Municipal Coun-

cil falls under ½ population concentration category. But

in 1981 it comes under 1/3rd population concentration

category indicating increasing population in this urban

46



Fig 3.30: Population concentration pattern based on net population density of 2001

area.



1/3rd of the cumulative population is distributed in 24

LSGs which include Municipal Councils (except

Kunnamkulam and Chalakkudy) and the Municipal Cor-

poration. ½ of the cumulative population is distributed

in 43 LSGs which include five Municipal Councils except

Kunnamkulam and the Municipal Corporation. 2/3RD of

the cumulative population is distributed in 60 LSGs

which include all Municipal Councils and the Municipal

Corporation. These 60 LSGs include coastal LSGs and

statutory urban areas.



1/3RD of the cumulative population is distributed in 25

LSGs which include five Municipal Councils (except

Kunnamkulam Muncipal Council) and the Thrissur Mu-

nicipal Corporation ½ of the cumulative population is

distributed in 43 LSGs which include all Municipal Coun-

cils and the Municipal Corporation . 2/3rd of the cumula-

tive population is distributed in 61 LSGs which include

all Municipal Councils and Municipal Corporation.

These 61 LSGs out of 99 LSGs include the coastal LSGs

and existing statutory urban areas.

The population concentration pattern based onnet population density

The population concentration pattern is derived

by calculating the cumulative population after arrang-

ing the LSGs in the descending order of net residential

density (total population / habitable area obtained by

subtracting the area of water bodies, forest, paddy, rub-

ber plantation, marshy and wasteland etc. from the

geographical area).

The population concentration pattern of the dis-

trict is shown in Fig. 3.30. It shows 1/3rd of the cumula-

tive population is distributed in 24 LSGs and it includes

5 Municipal Councils (except Chalakkudy Municipal

Council) and the Municipal Corporation. Half of the cu-

mulative population is distributed in 41 LSGs which in-

clude all Municipal Councils and the Municipal Corpo-

ration. 2/3rd of the cumulative population is distributed

in 62 LSGs which include all Municipal Councils and the

Municipal Corporation.

47



It shows 2/3rd of the total population of the dis-

trict is concentrated in 38.21% of the area of the dis-

trict. Considering the above factors, it is concluded that

population is distributed more in the coastal areas, along

the major transportation corridor and around the ur-

ban areas. The spatial location of 24 LSGs, where

1/3rd population is concentrated clearly shows that they

are located along coastal areas and in the corporation

area and its surroundings. This may be due to social/

occupational reasons. The alignment of NH 17 along the

coastal belt more strengthens the above factors.

3.6 MIGRATION DETAILS

The total population of Thrissur district in 1991

census was 2737311. Out of this, 209369 persons were

in-migrants by place of birth who constituted 7.65% of

the total population. The percentage of total male and

female in-migrants by place of birth was 6.66% and

8.56% respectively. As regards in-migrants by place of

birth from other districts of the state, there were 181173

such in-migrants, who constituted 86.53% of the total

in-migrants by place of birth reported in the district

during 1991 census. Among them 83.49% were male in-

migrants and 88.71% were female in-migrants. The per-

centage of in-migrants by place of birth who migrated

from other States and Union Territories of India to

Thrissur district was 11.72%. Among them, 14.4% were

males and 9.80% were females.

3.7 POPULATION PROJECTION (TREND BASED)

Population growth of an area depends on num-

bers of births, death, in migrants and out migrants over

a time period taken for the population projection. If

one can predict the exact future values of all these fac-

tors, population projection of that area can be done

very accurately. The mathematical expression is as fol-

lows

P1 = P0 + B- D + I-O , where P1 and P0 refers to the

size of population at the beginning and end of a time

period and B, D,I and O are the number of births , deaths

, immigrants and out migrants respectively in the time

period concerned. Practically this is very difficult .So

population projection is usually done by understand-

ing the pattern of population growth in the past and

assuming the same pattern will continue in the future,

the present population is projected to the desired fu-

ture period.

The population is projected by two methods

namely Decreasing rate method and Apportionment

method and average of the two is taken as the popula-

tion figures in 2011 and 2021.

Table 3.7: Projected District Population – Decreasing rate method

Year Total population Population Growth rate % Decrease inPopulation Growth rate

1971 2,128,877

1981 2,439,633 14.6

1991 2,737,311 12.2 -16.41

2001 2,974,232 8.66 -29.07

2011 3,156,775 6.14 -29.09

2021 3,294,161 4.35 -29.09

Source: Census 2001

48



1971 21,347,375 2,128,877 0.0997 1981 25,453,680 2,439,633 0.0958 -0.03891991 29,098,518 2,737,311 0.0941 -0.018522001 31,841,374 2,974,232 0.0934 -0.007042011 33,817,196 3,150,353 0.0932 -0.002672021 35,198,589 3,278,716 0.0931 -0.0001

YearTotal population

Kerala Thrissur

Ratio of Districtpopulation to Sate

Population

Change inthe ratio

Table 3.8: Projected District Population – Apportionment method

Source: Census 2001

3.7.1 Decreasing rate method

The population growth rate of 2011 & 2021 are

calculated assuming that the same percentage of de-

crease in population growth prevails as that of 2001 for

the succeeding two decades. Based on the population

growth rate calculated, the population of the District is

projected for 2011 and 2021 and the result is given in

Table 3.7.

3.7.2 Apportionment method

In the apportionment method the ratio of the

District population to the State population has been

found out and the same is projected to the next two

decades assuming the change in the ratio during 2001 -

2011 and 2011-2021 will remain same as the value of

that during 2001-2011. In order to find out the projected

population in 2011 and 2021, the projected populations

of the State during the same years are needed. The

details of the population projection of Kerala is elabo-

rated in the Annexe 3. The projected population of the

YearTotal population as per

decrease rate method

Total population as perapportionment method

Average

population figures

2011 3,156,775 3,150,353 3,153,564

2021 3,294,161 3,278,716 3,286,439

TABLE 3.9: FINAL PROJECTED POPULATION FIGURES OF THE DISTRICT

Source: Census 2001

District based on the apportionment method is given

in table 3.8.

The projected total population by the two meth-

ods differs slightly. The average of these two is taken

as the population figures of Thrissur District for 2011

and 2021. This is given in Table 3.9 .Thus the projected

total population of Thrissur District for 2011 and 2021

are 3,153,564 and 3,286,439 respectively.

3.8 INFERENCE

The population density of Thrissur district is 981

pp sq km which is higher than the state average value

of 819 pp.sq.km. Among the surrounding districts, popu-

lation density of Thrissur is less than that of Ernakulam

and Malappuram. The growth rate of population in the

district is significantly declining for the last three de-

cades and hence it can be presumed that there won’t

be much increase in the gross population density of

the district in future if the present trend continues.

The spatial agglomeration pattern of population

49

District Spatial Plan - Thrissur


POPULATION

clearly shows that the transportation corridors espe-

cially the national highways passing through the dis-

trict plays a crucial role in formulating the spatial con-

centration pattern of population. Other determinants

are social and physical character of coastal areas near-

ness to existing urban areas etc.

Three distinct zones can be earmarked based on

the distribution of the gross population density. The

eastern high land region of the district shows the least

gross population density value of less than 750 popula-

tion/sq km. The LSGs in the mid land region is having a

gross population density range of 750-1500 population/

sq km. The highest population density is seen in the

coastal belt of the district which falls in the range 1500-

3200 population / sq km. Based on the trend it is pro-

jected that the population of the District will be in-

creased by 1.79 lakhs and 1.33 lakhs in the succeeding

decades, 2001-11 and 2011-2021 respectively.

50

admin

Text Box

CHAPTER 4 >>

admin

Text Box

< CONTENTS >

Technology

Dsp thrissur ch3