what ohio county is hamersville in
Sponsored Topics. Hamersville is a village in Brown County, Ohio, United States. The population was 515 at the 2000 census. Hamersville is named after Thomas Hamer, a general in the Mexican-American War. Hamersville is located at 38Â°55â²8â³N 83Â°59â²8â³W / 38.91889Â°N 83.98556Â°W / 38.91889; -83.98556 (38.918852, -83.985504).