Kosciusko County, Indiana
County seat: Warsaw · Population 80,892 (2025) · 531 sq mi
Kosciusko County is the 22nd most populous of Indiana's 92 counties, with 80,892 people (2025 estimate). Its county seat is Warsaw. It is part of the Northern (Region 2) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 14 cities and towns and the 6 neighboring counties.
Kosciusko County facts
- County seat
- Warsaw
- Population (2025 estimate)
- 80,892 +0.8% since 2020
- Land area
- 531 sq mi 5th largest of 92
- Water area
- 23 sq mi
- Population density
- 152 per sq mi
- Established
- 1835
- Named after
- Tadeusz Kościuszko Polish, Lithuanian and American military leader (1746–1817)
- Largest city
- Warsaw 16,130
- Median household income
- $75,317
- Cities and towns
- 14 plus 7 CDPs
- ZIP codes
- 21
- Time zone
- Eastern
- FIPS code
- 18085
Cities and towns in Kosciusko County
Kosciusko County has 14 incorporated cities, towns and villages. Populations count the people living inside Kosciusko County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Warsaw (county seat) | City | 16,130 | |
| Winona Lake | Town | 5,126 | |
| Syracuse | Town | 3,238 | Elkhart County |
| Milford | Town | 1,686 | |
| North Webster | Town | 1,001 | |
| Pierceton | Town | 934 | |
| Mentone | Town | 923 | |
| Silver Lake | Town | 875 | |
| Etna Green | Town | 576 | |
| Leesburg | Town | 550 | |
| Claypool | Town | 396 | |
| Nappanee | City | 313 | Elkhart County |
| Sidney | Town | 128 | |
| Burket | Town | 121 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Barbee | 1,464 | |
| Palestine | 1,085 | |
| Enchanted Hills | 1,039 | |
| Hoffman Lake | 382 | |
| Oswego | 283 | |
| Beaver Dam | 143 | |
| Wooster | 70 |
ZIP codes in Kosciusko County
21 ZIP codes reach into Kosciusko County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 46502
- 46504 also Marshall County
- 46506 also Marshall and St. Joseph counties
- 46508
- 46510
- 46524 also Marshall County
- 46538
- 46539 also Fulton and Marshall counties
- 46542 also Elkhart County
- 46550 also Elkhart, Marshall and St. Joseph counties
- 46555
- 46562 also Whitley and Noble counties
- 46567 also Elkhart County
- 46580
- 46582
- 46590
- 46732 also Noble County
- 46787 also Whitley and Huntington counties
- 46910 also Fulton and Miami counties
- 46962 also Wabash and Whitley counties
- 46982 also Wabash and Fulton counties
Population of Kosciusko County, 2020–2025
Kosciusko County grew by 658 people (+0.8%) between April 2020 and July 2025: 210 more births than deaths and a net gain of 440 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 80,152 |
| 2021 | 80,242 |
| 2022 | 80,624 |
| 2023 | 80,338 |
| 2024 | 80,769 |
| 2025 | 80,892 |
Neighboring counties
- Elkhart County north · 208,774 people
- Marshall County west · 46,599 people
- Whitley County east · 35,046 people
- Fulton County southwest · 20,091 people
- Wabash County south · 30,713 people
- Noble County northeast · 47,937 people
Printable Kosciusko 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) (111 KB)
- PNG (2400 px) (84 KB)
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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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