14 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Center township | 1 | 6,025 | 6,144 | -0.3% | 166 | 36.34 | Township |
| Wayne township | 2 | 4,553 | 4,617 | -0.07% | 125 | 36.32 | Township |
| Knox | 3 | 3,556 | 3,663 | -0.59% | 899 | 3.96 | City |
| Oregon township | 4 | 3,246 | 3,263 | 0.06% | 91 | 35.65 | Township |
| California township | 5 | 2,129 | 2,133 | 0.14% | 61 | 34.66 | Township |
| North Judson | 6 | 1,781 | 1,860 | -0.89% | 1,607 | 1.11 | Town |
| North Bend township | 7 | 1,487 | 1,486 | 0.2% | 42 | 35.46 | Township |
| Railroad township | 8 | 1,212 | 1,217 | 0.08% | 33 | 36.61 | Township |
| Davis township | 9 | 1,003 | 984 | 0.91% | 28 | 35.89 | Township |
| Bass Lake | 10 | 974 | 1,332 | -1.42% | 112 | 8.71 | CDP |
| Hamlet | 11 | 775 | 767 | 0.26% | 803 | 0.96 | Town |
| Jackson township | 12 | 539 | 545 | -0.19% | 24 | 22.07 | Township |
| San Pierre | 13 | 509 | 248 | 4.95% | 851 | 0.60 | CDP |
| Knox township | 14 | 447 | 460 | -0.45% | 19 | 23.70 | Township |
Center township is the largest city in Starke County, with a population of 6,025.
Knox township is the smallest city in Starke County.
There are 14 cities in Starke County, Indiana.