|Number||Census Class & Code||Description|
|679||Incorporated Places - C1||An active incorporated place that does not serve as a county subdivision equivalent.|
|218||Incorporated Places - C2||An active incorporated place legally coextensive with a county subdivision but treated as independent of any county subdivision.|
|29||Incorporated Places - C5||An active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent.|
|13||Incorporated Places - C6||An active incorporated place that partially is independent of any county subdivision and serves as a county subdivision equivalent or partially coextensive with a county subdivision but treated as independent of any county subdivision.|
|88||Counties and County Equivalents - H1||An active county or equivalent feature.|
|1,308||Active Minor Civil Divisions - T1||An active county subdivision that is not coextensive with an incorporated place.|
|8||Obsolete or Incorrect Name - X1||Deleted feature that was a governmental entity.|
|3||Inactive or Nonfunctioning Primary County Divisions - Z8||A county subdivision that is legally coextensive with all or part of an incorporated place that the Census Bureau does not recognize.|
|25||Land Grants & Other - N/A||Land Grants and Other Unclassified Civil Features|
The Demographic Data for the 4,014 Ohio cities, towns, counties, ZIP Codes and Census Designated Places (CDPs) profiled in this gazetteer is updated annually. Last Update: July 1, 2014.
The ZIP Code maps and the data regarding the number of residential and business addresses in each ZIP Code are updated four times per year. Last Update: November 1, 2014.
The information on the 67,970 Ohio Physical, Cultural and Historic Features is updated six times per year. Last Update: December 2, 2014.
The School Attendance Zone Maps for 2,768 Ohio public schools are updated four times per year. Last Update: October 6, 2014.