19 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Union | 1 | 10,161 | 9,886 | 0.95% | 244 | 41.68 | Township |
| Monticello | 2 | 5,565 | 5,509 | 0.2% | 1,606 | 3.47 | City |
| Prairie | 3 | 3,478 | 3,381 | 0.96% | 52 | 66.58 | Township |
| Monon | 4 | 3,413 | 3,298 | 1.1% | 54 | 63.42 | Township |
| Monon | 5 | 1,950 | 1,920 | 0.31% | 2,203 | 0.89 | Town |
| Brookston | 6 | 1,658 | 1,633 | 0.3% | 2,512 | 0.66 | Town |
| Honey Creek | 7 | 1,240 | 1,199 | 1.14% | 29 | 42.35 | Township |
| Wolcott | 8 | 956 | 950 | 0.1% | 1,612 | 0.59 | Town |
| Big Creek | 9 | 853 | 832 | 0.95% | 26 | 33.03 | Township |
| Buffalo | 10 | 797 | 895 | 0.89% | 336 | 2.37 | CDP |
| Jackson | 11 | 719 | 696 | 1.13% | 46 | 15.60 | Township |
| Lincoln | 12 | 665 | 640 | 1.22% | 31 | 21.51 | Township |
| Cass | 13 | 597 | 580 | 0.84% | 16 | 36.19 | Township |
| Reynolds | 14 | 540 | 530 | 0.37% | 976 | 0.55 | Town |
| Chalmers | 15 | 528 | 525 | 0.19% | 1,748 | 0.30 | Town |
| Burnettsville | 16 | 396 | 390 | 0.25% | 531 | 0.75 | Town |
| West Point | 17 | 371 | 358 | 1.37% | 7 | 53.53 | Township |
| Idaville | 18 | 300 | 308 | -3.23% | 51 | 5.84 | CDP |
| Round Grove | 19 | 257 | 253 | 0.78% | 7 | 35.48 | Township |
Union is the largest city in White County, with a population of 10,161.
Round Grove is the smallest city in White County, with a population of 257.
There are 19 cities in White County, Indiana.