35 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Worthington | 1 | 13,720 | 13,888 | -0.25% | 1,728 | 8 | City |
| Adrian | 2 | 1,198 | 1,196 | 0% | 1,025 | 1 | City |
| Ellsworth | 3 | 852 | 841 | 0.35% | 29 | 30 | Township |
| Brewster | 4 | 498 | 506 | -0.4% | 360 | 1 | City |
| Ellsworth | 5 | 485 | 494 | -0.41% | 736 | 1 | City |
| Leota | 6 | 373 | 379 | 0.27% | 10 | 36 | Township |
| Bigelow | 7 | 370 | 372 | 0.82% | 11 | 35 | Township |
| Round Lake | 8 | 365 | 374 | -0.54% | 503 | 1 | City |
| Rushmore | 9 | 362 | 369 | -0.55% | 1,425 | 0 | City |
| Wilmont | 10 | 324 | 333 | -0.61% | 558 | 1 | City |
| Worthington | 11 | 313 | 320 | 0% | 11 | 28 | Township |
| Lorain | 12 | 292 | 297 | 0.34% | 8 | 35 | Township |
| Summit Lake | 13 | 284 | 290 | 0% | 8 | 36 | Township |
| Kanaranzi | 14 | 244 | 252 | -0.81% | 7 | 36 | Township |
| Dewald | 15 | 223 | 224 | 0.9% | 6 | 36 | Township |
| Bigelow | 16 | 218 | 225 | -0.91% | 555 | 0 | City |
| Round Lake | 17 | 215 | 211 | 0.47% | 3 | 65 | Township |
| Indian Lake | 18 | 212 | 213 | 0.47% | 6 | 34 | Township |
| Elk | 19 | 208 | 213 | 0% | 6 | 36 | Township |
| Grand Prairie | 20 | 208 | 209 | 0.48% | 6 | 35 | Township |
| Westside | 21 | 208 | 209 | 0.48% | 6 | 35 | Township |
| Little Rock | 22 | 205 | 206 | 0.49% | 6 | 36 | Township |
| Lismore | 23 | 201 | 204 | -0.5% | 576 | 0 | City |
| Ransom | 24 | 201 | 204 | 0.5% | 6 | 36 | Township |
| Seward | 25 | 197 | 202 | 0% | 6 | 36 | Township |
| Hersey | 26 | 187 | 189 | 0% | 5 | 35 | Township |
| Wilmont | 27 | 184 | 186 | 0% | 5 | 36 | Township |
| Larkin | 28 | 178 | 180 | 0% | 5 | 36 | Township |
| Graham Lakes | 29 | 168 | 172 | 0% | 5 | 33 | Township |
| Lismore | 30 | 166 | 168 | 0% | 5 | 36 | Township |
| Olney | 31 | 159 | 161 | 0% | 5 | 35 | Township |
| Round Lake | 32 | 143 | 143 | 0% | 4 | 34 | Township |
| Bloom | 33 | 138 | 140 | 0% | 4 | 36 | Township |
| Leota | 34 | 130 | 153 | -4.41% | 86 | 2 | CDP |
| Adrian | 35 | 127 | 128 | 0% | 4 | 35 | Township |
Worthington is the largest city in Nobles County, with a population of 13,720.
Adrian is the smallest city in Nobles County, with a population of 127.
There are 35 cities in Nobles County, Minnesota.