19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Union | 1 | 9,953 | 9,886 | 0.2% | 239 | 42 | Township |
| Monticello | 2 | 5,521 | 5,510 | 0.04% | 1,593 | 3 | City |
| Prairie | 3 | 3,404 | 3,378 | 0.27% | 51 | 67 | Township |
| Monon | 4 | 3,343 | 3,299 | 0.3% | 53 | 63 | Township |
| Monon | 5 | 1,931 | 1,919 | 0.1% | 2,182 | 1 | Town |
| Brookston | 6 | 1,642 | 1,632 | 0.12% | 2,488 | 1 | Town |
| Honey Creek | 7 | 1,216 | 1,207 | 0.25% | 29 | 42 | Township |
| Wolcott | 8 | 952 | 951 | 0% | 1,605 | 1 | Town |
| Big Creek | 9 | 835 | 830 | 0.36% | 25 | 33 | Township |
| Buffalo | 10 | 797 | 895 | 0.89% | 336 | 2 | CDP |
| Jackson | 11 | 700 | 695 | 0.43% | 45 | 16 | Township |
| Lincoln | 12 | 657 | 641 | 0.31% | 31 | 22 | Township |
| Cass | 13 | 587 | 581 | 0% | 16 | 36 | Township |
| Reynolds | 14 | 533 | 530 | 0% | 964 | 1 | Town |
| Chalmers | 15 | 523 | 522 | 0% | 1,732 | 0 | Town |
| Burnettsville | 16 | 391 | 390 | 0% | 524 | 1 | Town |
| West Point | 17 | 351 | 356 | -0.85% | 7 | 54 | Township |
| Idaville | 18 | 300 | 308 | -3.23% | 51 | 6 | CDP |
| Round Grove | 19 | 252 | 253 | 0% | 7 | 35 | Township |
Union is the largest city in White County, with a population of 9,953.
Round Grove is the smallest city in White County, with a population of 252.
There are 19 cities in White County, Indiana.