Census tracts are composed of blocks and block groups. In 2000, Census tracts in Cuyahoga County contained between zero and approximately 6,700 people.
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.
"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.
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...