Franklin County, Indiana
County seat: Brookville · Population 23,286 (2025) · 384 sq mi
Franklin County is the 67th most populous of Indiana's 92 counties, with 23,286 people (2025 estimate). Its county seat is Brookville. It is part of the Southeast (Region 9) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 6 cities and towns and the 8 neighboring counties.
Franklin County facts
- County seat
- Brookville
- Population (2025 estimate)
- 23,286 +2.2% since 2020
- Land area
- 384 sq mi 55th largest of 92
- Water area
- 7 sq mi
- Population density
- 61 per sq mi
- Established
- 1811
- Named after
- Benjamin Franklin American polymath and statesman (1706–1790)
- Largest city
- Brookville 2,663
- Median household income
- $78,074
- Cities and towns
- 6 plus 9 CDPs
- ZIP codes
- 15
- Time zone
- Eastern
- FIPS code
- 18047
Cities and towns in Franklin County
Franklin County has 6 incorporated cities, towns and villages. Populations count the people living inside Franklin County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Brookville (county seat) | Town | 2,663 | |
| Batesville | City | 2,007 | Ripley County |
| Oldenburg | Town | 651 | |
| Laurel | Town | 414 | |
| Cedar Grove | Town | 148 | |
| Mount Carmel | Town | 90 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Metamora | 491 | |
| New Trenton | 290 | |
| Andersonville | 238 | |
| Peppertown | 162 | |
| Blooming Grove | 117 | |
| Lakeshore Resort | 29 | |
| Hamburg | 25 | |
| Lake View | 23 | |
| Lake Santee | 0 | Decatur County |
ZIP codes in Franklin County
15 ZIP codes reach into Franklin County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 46173 also Rush, Decatur and Fayette counties
- 47003 also Union County
- 47006 also Ripley and Decatur counties
- 47010 also Union County
- 47012 also Dearborn County
- 47016
- 47024 also Fayette County
- 47030
- 47035
- 47036
- 47041 also Dearborn and Ripley counties
- 47060 also Dearborn County
- 47240 also Decatur, Shelby, Ripley and Rush counties
- 47331 also Fayette, Union and Wayne counties
- 47353 also Union County
Population of Franklin County, 2020–2025
Franklin County grew by 496 people (+2.2%) between April 2020 and July 2025: 141 more deaths than births and a net gain of 627 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 22,791 |
| 2021 | 22,887 |
| 2022 | 23,104 |
| 2023 | 23,184 |
| 2024 | 23,136 |
| 2025 | 23,286 |
Neighboring counties
- Butler County, Ohio east · 400,128 people
- Fayette County north · 23,533 people
- Ripley County southwest · 29,434 people
- Dearborn County south · 51,609 people
- Decatur County west · 26,576 people
- Union County northeast · 6,863 people
- Rush County northwest · 16,767 people
- Hamilton County, Ohio southeast · 838,418 people
Printable Franklin 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) (84 KB)
- PNG (2400 px) (62 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.
Back to the Indiana county map with all 92 counties. Found an error? Tell us.