Ohio County, Indiana
County seat: Rising Sun · Population 5,994 (2025) · 86 sq mi
Ohio County is the 92nd most populous of Indiana's 92 counties, with 5,994 people (2025 estimate). Its county seat is Rising Sun. It is part of the Southeast (Region 9) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 1 city or town and the 4 neighboring counties.
Ohio County facts
- County seat
- Rising Sun
- Population (2025 estimate)
- 5,994 +1% since 2020
- Land area
- 86 sq mi 92nd largest of 92
- Water area
- 1 sq mi
- Population density
- 70 per sq mi
- Established
- 1844
- Named after
- Ohio River river in the midwestern United States
- Largest city
- Rising Sun 2,222
- Median household income
- $70,392
- Cities and towns
- 1
- ZIP codes
- 5
- Time zone
- Eastern
- FIPS code
- 18115
Cities and towns in Ohio County
Ohio County has 1 incorporated place. Populations count the people living inside Ohio County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Rising Sun (county seat) | City | 2,222 |
ZIP codes in Ohio County
5 ZIP codes reach into Ohio County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 47001 also Dearborn County
- 47011 also Switzerland County
- 47017 also Ripley and Switzerland counties
- 47018 also Dearborn, Ripley and Switzerland counties
- 47040 also Switzerland County
Population of Ohio County, 2020–2025
Ohio County grew by 61 people (+1%) between April 2020 and July 2025: 203 more deaths than births and a net gain of 262 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 5,926 |
| 2021 | 5,983 |
| 2022 | 6,091 |
| 2023 | 5,998 |
| 2024 | 6,001 |
| 2025 | 5,994 |
Neighboring counties
- Dearborn County north · 51,609 people
- Switzerland County southwest · 10,037 people
- Boone County, Kentucky east · 145,316 people
- Ripley County northwest · 29,434 people
Printable Ohio County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (61 KB)
- PNG (2400 px) (61 KB)
Paste this code to embed the map on your site:
Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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