There are 7 cities in Pennington 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 |
| Red Lake Falls | 2 | Minnesota | 1,304 | 1,350 | -0.84% | 621 | 2.10 |
| Oklee | 3 | Minnesota | 397 | 415 | -1% | 529 | 0.75 |
| Plummer | 4 | Minnesota | 271 | 277 | -0.37% | 101 | 2.67 |
| St. Hilaire | 5 | Minnesota | 248 | 274 | -2.36% | 317 | 0.78 |
| Goodridge | 6 | Minnesota | 107 | 111 | -0.93% | 569 | 0.19 |
| Trail | 7 | Minnesota | 40 | 38 | 2.56% | 40 | 1 |
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 Pennington County.
Trail is the smallest city in Pennington County.
There are 7 cities in Pennington County, Minnesota.