Starke County, Indiana
County seat: Knox · Population 23,425 (2025) · 309 sq mi
Starke County is the 66th most populous of Indiana's 92 counties, with 23,425 people (2025 estimate). Its county seat is Knox. It is part of the Northwest (Region 1) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 3 cities and towns and the 7 neighboring counties.
Starke County facts
- County seat
- Knox
- Population (2025 estimate)
- 23,425 +0.2% since 2020
- Land area
- 309 sq mi 77th largest of 92
- Water area
- 3 sq mi
- Population density
- 76 per sq mi
- Established
- 1835
- Named after
- John Stark American Revolutionary War general from New Hampshire
- Largest city
- Knox 3,601
- Median household income
- $63,960
- Cities and towns
- 3 plus 6 CDPs
- ZIP codes
- 11
- Time zone
- Central
- FIPS code
- 18149
Cities and towns in Starke County
Starke County has 3 incorporated cities, towns and villages. Populations count the people living inside Starke County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Knox (county seat) | City | 3,601 | |
| North Judson | Town | 1,802 | |
| Hamlet | Town | 768 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Koontz Lake | 1,054 | Marshall County |
| Bass Lake | 983 | |
| San Pierre | 727 | |
| Hartz Lake | 312 | |
| Groverton | 111 | |
| Ora | 63 | Pulaski County |
ZIP codes in Starke County
11 ZIP codes reach into Starke County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 46366 also Pulaski County
- 46374 also Jasper and Pulaski counties
- 46511 also Marshall, Fulton and Pulaski counties
- 46531 also Marshall County
- 46532 also LaPorte County
- 46534
- 46563 also Marshall and St. Joseph counties
- 46574 also LaPorte, St. Joseph and Marshall counties
- 46960 also Pulaski and Fulton counties
- 46968 also Pulaski County
- 46996 also Pulaski and White counties
Population of Starke County, 2020–2025
Starke County grew by 44 people (+0.2%) between April 2020 and July 2025: 466 more deaths than births and a net gain of 508 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 23,397 |
| 2021 | 23,381 |
| 2022 | 23,237 |
| 2023 | 23,309 |
| 2024 | 23,406 |
| 2025 | 23,425 |
Neighboring counties
- LaPorte County north · 111,294 people
- Pulaski County south · 12,463 people
- Marshall County east · 46,599 people
- Jasper County southwest · 33,894 people
- St. Joseph County northeast · 272,861 people
- Fulton County southeast · 20,091 people
- Porter County northwest · 176,049 people
Printable Starke 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) (86 KB)
- PNG (2400 px) (64 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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