Geographic Definitions with Example Maps
Resources to explain and illustrate the geographic boundaries used for population data.
- Zip Code Tabulation Areas by jdc10 — last modified 2008-04-13 19:41 PM
-
ZCTAs are collection of Census blocks that approximate US Postal Service ZIP Code areas. They cross the boundaries
of places or county subdivisions, and offer an alternate geography for comparing population statistics.
Keywords: Data Help, Maps - Census Tracts by jdc10 — last modified 2007-12-23 15:14 PM
-
Census tracts are composed of blocks and block groups. In 2000, Census tracts in Cuyahoga County contained between zero and approximately 6,700 people.
Keywords: Data Help, Maps - Census Blocks and Block Groups by jdc10 — last modified 2007-11-23 15:58 PM
-
Census blocks are the smallest groups of census data, but access to block-level data is restricted to protect individual privacy. Block groups are the smallest level of tabulated census data.
Keywords: Data Help, Maps - Places and County Subdivisions by jdc10 — last modified 2007-09-26 07:11 AM
-
"Place" is the Census name for cities, towns and villages. In Ohio, areas within a county that are outside of a place are generally divided into townships.
Keywords: Data Help, Maps
Keywords: Maps


