Like a small number of other states in the U.S., Ohio uses numeric codes to identify the name of the county that issues each motor vehicle license plate. County numbers (1-88) are assigned to each county, depending on where the county name falls in the alphabet.
Ohio's implementation is unique when compared to states like Alabama, South Dakota, Montana, Wyoming and Idaho.
- In those states, the county prefix is an integral part of the license plate number. In Ohio, on the other hand, the county number is on a sticker affixed to the lower left-hand corner of the pla te.
- In other states, vanity plates have no county code prefix. In Ohio, even vanity plates have a county code sticker in the lower left-hand corner. (A few plates--like some seen on police cars--might include the county code as an integral part of the license plate number.)