List of counties in Ohio



This is a list of the eighty-eight in the   of . The allows counties to set up a  government as many  and s do, but only  has done so. Counties do not possess powers and can do only what has been expressly authorized by the. Ohio law defines a structure for county government, although each county may choose to define its own. has chosen an alternate structure, while all of the other counties use the default structure. The elected county officials include a sheriff (the highest law enforcement officer in the county); prosecutor (equivalent of a in other states); coroner, engineer, auditor, treasurer and clerk of courts.

The (FIPS) code, which is used by the United States government to identify states and counties uniquely, is provided with each entry. Ohio's code is 39, which when combined with any county code would be written as 39XXX. The FIPS code for each county links to census data for that county.