There are 28 cities in Polk County, Minnesota.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | State | 2024 Population | 2020 Census | Annual Change | Density (mi²) | Area (mi²) |
|---|---|---|---|---|---|---|---|
| Thief River Falls | 1 | Minnesota | 8,973 | 8,833 | 0.39% | 1,495 | 6 |
| East Grand Forks | 2 | Minnesota | 8,948 | 9,142 | -0.53% | 1,505 | 5.95 |
| Crookston | 3 | Minnesota | 7,184 | 7,462 | -0.95% | 1,404 | 5.12 |
| Warren | 4 | Minnesota | 1,536 | 1,596 | -0.97% | 1,055 | 1.46 |
| Fosston | 5 | Minnesota | 1,371 | 1,427 | -1.01% | 685 | 2 |
| Bagley | 6 | Minnesota | 1,326 | 1,288 | 0.76% | 617 | 2.15 |
| Red Lake Falls | 7 | Minnesota | 1,304 | 1,350 | -0.84% | 621 | 2.10 |
| Fertile | 8 | Minnesota | 786 | 798 | -0.38% | 379 | 2.08 |
| McIntosh | 9 | Minnesota | 579 | 603 | -1.03% | 580 | 1 |
| Fisher | 10 | Minnesota | 401 | 419 | -0.99% | 941 | 0.43 |
| Oklee | 11 | Minnesota | 397 | 415 | -1% | 529 | 0.75 |
| Erskine | 12 | Minnesota | 384 | 402 | -1.03% | 595 | 0.65 |
| Alvarado | 13 | Minnesota | 377 | 387 | -0.53% | 1,804 | 0.21 |
| Rice Lake | 14 | Minnesota | 277 | 267 | 1.09% | 27 | 10.45 |
| Gonvick | 15 | Minnesota | 269 | 267 | 0.37% | 205 | 1.31 |
| Climax | 16 | Minnesota | 243 | 243 | 0% | 259 | 0.94 |
| Oslo | 17 | Minnesota | 234 | 244 | -0.85% | 631 | 0.37 |
| Winger | 18 | Minnesota | 172 | 174 | 0% | 531 | 0.32 |
| Brooks | 19 | Minnesota | 114 | 118 | -0.87% | 99 | 1.15 |
| Ebro | 20 | Minnesota | 107 | 75 | 8.08% | 122 | 0.88 |
| Mentor | 21 | Minnesota | 103 | 107 | -0.96% | 54 | 1.91 |
| Lengby | 22 | Minnesota | 91 | 91 | 0% | 370 | 0.25 |
| Beltrami | 23 | Minnesota | 84 | 88 | -1.18% | 42 | 2 |
| Nielsville | 24 | Minnesota | 76 | 80 | -1.3% | 263 | 0.29 |
| Gully | 25 | Minnesota | 54 | 56 | 0% | 220 | 0.25 |
| Trail | 26 | Minnesota | 40 | 38 | 2.56% | 40 | 1 |
| South End | 27 | Minnesota | 13 | 65 | -50% | 7 | 1.77 |
| Pine Bend | 28 | Minnesota | 5 | 51 | -68.75% | 4 | 1.26 |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Thief River Falls is the largest city in Polk County.
Pine Bend is the smallest city in Polk County.
There are 28 cities in Polk County, Minnesota.