22 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Eureka | 1 | 5,175 | 5,217 | -0.14% | 1,891 | 3 | City |
| Olio | 2 | 4,653 | 4,706 | -0.32% | 148 | 31 | Township |
| Metamora | 3 | 4,471 | 4,532 | -0.36% | 123 | 36 | Township |
| Metamora | 4 | 3,856 | 3,898 | -0.18% | 1,695 | 2 | Village |
| Germantown Hills | 5 | 3,463 | 3,423 | 0.2% | 1,981 | 2 | Village |
| El Paso | 6 | 3,382 | 3,410 | -0.15% | 140 | 24 | Township |
| El Paso | 7 | 2,724 | 2,747 | -0.15% | 1,270 | 2 | City |
| Spring Bay | 8 | 2,529 | 2,519 | -0.04% | 250 | 10 | Township |
| Roanoke | 9 | 2,365 | 2,419 | -0.55% | 64 | 37 | Township |
| Minonk | 10 | 2,077 | 2,119 | -0.38% | 57 | 37 | Township |
| Roanoke | 11 | 1,914 | 1,955 | -0.36% | 2,041 | 1 | Village |
| Minonk | 12 | 1,885 | 1,924 | -0.32% | 785 | 2 | City |
| Cruger | 13 | 1,829 | 1,853 | -0.38% | 107 | 17 | Township |
| Cazenovia | 14 | 1,605 | 1,638 | -0.43% | 44 | 36 | Township |
| Goodfield | 15 | 963 | 948 | 0.31% | 572 | 2 | Village |
| Partridge | 16 | 581 | 581 | 0% | 22 | 26 | Township |
| Congerville | 17 | 507 | 494 | 0.4% | 526 | 1 | Village |
| Greene | 18 | 445 | 450 | -0.45% | 12 | 36 | Township |
| Benson | 19 | 400 | 411 | -0.5% | 2,454 | 0 | Village |
| Panola | 20 | 376 | 378 | -0.27% | 10 | 36 | Township |
| Secor | 21 | 336 | 339 | 0% | 1,159 | 0 | Village |
| Linn | 22 | 282 | 278 | 0.71% | 8 | 37 | Township |
Eureka is the largest city in Woodford County, with a population of 5,175.
Linn is the smallest city in Woodford County, with a population of 282.
There are 22 cities in Woodford County, Illinois.