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Researching Your Service Area
John Graham,
Department Manager
Public Documents & Patents Dept.
Uses of Census Data
+ Find demographics of community
+ Get a profile of non-users – who are we not seeing in the agency
+Program planning & collection development
+ Anticipate & meet changing needs
Geographic Areas
• Data available for towns, cities, townships, counties, and Census Designated Places, such as Turpin Hills or Kenwood
• Neighborhoods, not used in Census publications. Need to find tract boundaries
Census Geography II
• Census Tracts first used for Cincy in 1930. Designed to be homogenous population groups, which today average 4,000 people.
• Neighborhood borders usually match tract borders.
• Tract boundaries have changed over time.• Blocks are smallest Census geography; data
available 1980-2000.
Cincinnati Census Tract Boundaries
• Neighborhoods composed of 1 or more tracts
• Tracts may cross municipal boundaries
• Use Government Resources-Census to find chart of tract boundaries
• Or use Enter a Street Address feature
Census 2000
• www.census.gov -- American FactFinder
• Phased release of data in Summary Files
• Summary File 4 recently released. Has ancestry, disability, language data
• Website has 1990 & 2000 data only
• Tract/block boundaries only – no neighborhoods listed
Summary File 1 (SF 1)
• Basic population & housing counts
• Covers 63 racial groups
• Actual counts, no sampling or adjustments
• From the national level down to the block level
• Used for House apportionment
Summary File 2 (SF 2)
• Detailed population & housing data
• Reported in up to 63 racial/ethnic groups
• Also complete count, no sampling
• From tract level up to national level
Summary File 3 (SF 3)
• Sample data of 1 in 6 households
• 813 detailed housing, social, and economic tables, including income, education, and language
• From block group up to national level
• Lots of breakdowns by race/ethnicity: 51 tables across 9 separate groups
Summary File 4 (SF 4)
• 335 population tables across racial/ethnic groups
• From tract level to national level
• Detailed characteristics: grandparents as caregivers, ancestry groups
• Released for Ohio July 27, 2003
What’s Not Available
• Religion• Appalachian origin• Names of individuals
or businesses
• Anything more recent than the last Census in most cases
• Homeless population –labeled as Homeless population
4-part search strategy
• Define your geographic area: be flexible regarding specific area
• Time period. Remember detailed data available only decennially, every 10 years
• Characteristics. Be sure you’re in the right Summary File to find what you need
• Output. Excel, PDF, just a quick figure
Search Strategy 2
• Visit the Hamilton County Regional Planning Commission Website
• Visit the Census Bureau Website as needed or for more details, using the Summary Files of interest
• Visit the “Census” category in the Government Resources Website
Search Strategy 3
• www.census.gov• Go to American
Factfinder• Choose your file,
Summary File 1, 2 etc.• Go to Quick Tables
• Choose your Geographic level, place, tract, block, etc.
• Pick the data you want• You can always click
“Change Selections” to make a change
Census Documents
• Hard copy documents 1790-2000
• Arranged by Document Call number
• Multiple volumes per year
• Use Census Catalog for index
• Just ask for assistance!
• PLCH has a complete collection
Government Resources Page
Government Resources - Census
Useful Websites
• PLCH: www.cincinnatilibrary.org• Census Bureau: www.census.gov• UVA Historical Census Browser
http://fisher.lib.virginia.edu/census/• Hamilton County Regional Planning
Commission http://www.hamilton-co.org/hcrpc/
• OKI www.oki.org Click on Maps & Data
County Planning Commission
Roselawn 1-Page Profile
GIS Service Available
• (Geographic Information System) GIS
• Makes custom maps using Census or other data
• Staffed at Main by G&B, PD, and History
• 10-day turnaround time
• Free of charge
Roselawn GIS Map