Founded in Mar 1, 1818, Brown County is one of 88 counties in the state of Ohio. Historically, Brown County was formed from Adams and Clermont Counties. The city of Georgetown is the county seat. With FIPS code of 15, Brown County has a population of 43,662 and area of 491.76 square miles (1,274 km2).
List of all cities in Brown County, OH alphabetically
| City/Town | Postal Code | Area Code |
| Aberdeen, OH | 45101 | 937 |
| Ash Ridge, OH | 45121 | 937 |
| Bardwell, OH | 45154 | 937 |
| Brown County, OH | 45121 | 937 |
| Byrd, OH | 45115 | 937 |
| Clermont County, OH | 45121 | 937 |
| Decatur, OH | 45115 | 937 |
| Ellsberry, OH | 45101 | 937 |
| Fayetteville, OH | 45118 | 513/283 |
| Feesburg, OH | 45119 | 937 |
| Five Mile, OH | 45154 | 937 |
| Georgetown, OH | 45121 | 937 |
| Hamersville, OH | 45130 | 937 |
| Higginsport, OH | 45131 | 937 |
| Hillman, OH | 45121 | 937 |
| Mount Orab, OH | 45154 | 937 |
| Poetown, OH | 45130 | 937 |
| Redoak, OH | 45167 | 937 |
| Ripley, OH | 45167 | 937 |
| Russellville, OH | 45168 | 937 |
| Saint Martin, OH | 45118 | 513/283 |
| Sardinia, OH | 45171 | 937 |
| Utopia, OH | 45121 | 937 |
| Yankeetown, OH | 45130 | 937 |