Carroll County, Indiana
County seat: Delphi · Population 20,655 (2025) · 372 sq mi
Carroll County is the 70th most populous of Indiana's 92 counties, with 20,655 people (2025 estimate). Its county seat is Delphi. It is part of the West Central (Region 4) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 5 cities and towns and the 5 neighboring counties.
Carroll County facts
- County seat
- Delphi
- Population (2025 estimate)
- 20,655 +1.7% since 2020
- Land area
- 372 sq mi 64th largest of 92
- Water area
- 3 sq mi
- Population density
- 56 per sq mi
- Established
- 1828
- Named after
- Charles Carroll of Carrollton American planter and signatory of the Declaration of Independence (1737-1832)
- Largest city
- Delphi 2,973
- Median household income
- $65,645
- Cities and towns
- 5 plus 6 CDPs
- ZIP codes
- 17
- Time zone
- Eastern
- FIPS code
- 18015
Cities and towns in Carroll County
Carroll County has 5 incorporated cities, towns and villages. Populations count the people living inside Carroll County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Delphi (county seat) | City | 2,973 | |
| Flora | Town | 2,106 | |
| Camden | Town | 601 | |
| Burlington | Town | 533 | |
| Yeoman | Town | 122 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Pittsburg | 201 | |
| Deer Creek | 183 | |
| Rockfield | 144 | |
| Burrows | 138 | |
| Cutler | 108 | |
| Bringhurst | 98 |
ZIP codes in Carroll County
17 ZIP codes reach into Carroll County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 46041 also Clinton County
- 46065 also Clinton County
- 46913
- 46915
- 46917
- 46920
- 46923 also Tippecanoe County
- 46929 also Howard County
- 46932 also Cass, Howard and Miami counties
- 46947 also Cass County
- 47905 also Tippecanoe and Clinton counties
- 47920 also Tippecanoe and White counties
- 47923 also White County
- 47926 also White County
- 47950 also White County
- 47960 also White and Pulaski counties
- 47997
Population of Carroll County, 2020–2025
Carroll County grew by 346 people (+1.7%) between April 2020 and July 2025: 7 more births than deaths and a net gain of 343 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 20,339 |
| 2021 | 20,515 |
| 2022 | 20,482 |
| 2023 | 20,556 |
| 2024 | 20,710 |
| 2025 | 20,655 |
Neighboring counties
- White County northwest · 25,164 people
- Cass County northeast · 37,836 people
- Clinton County south · 33,322 people
- Tippecanoe County southwest · 190,456 people
- Howard County east · 83,904 people
Printable Carroll 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) (83 KB)
- PNG (2400 px) (63 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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