There are 16 cities in Fergus County, Montana.
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) |
|---|---|---|---|---|---|---|---|
| Lewistown | 1 | Montana | 6,183 | 5,969 | 0.88% | 1,081 | 5.72 |
| Lewistown Heights | 2 | Montana | 440 | 312 | -4.97% | 187 | 2.36 |
| Denton | 3 | Montana | 212 | 206 | 0.95% | 297 | 0.71 |
| Roy | 4 | Montana | 206 | 120 | 11.96% | 61 | 3.40 |
| Moore | 5 | Montana | 204 | 194 | 1.49% | 699 | 0.29 |
| Winifred | 6 | Montana | 176 | 170 | 1.15% | 336 | 0.52 |
| Grass Range | 7 | Montana | 116 | 112 | 0.87% | 829 | 0.14 |
| Judith Gap | 8 | Montana | 103 | 111 | -1.91% | 310 | 0.33 |
| Coffee Creek | 9 | Montana | 76 | 0 | 33.33% | 207 | 0.37 |
| Fords Creek Colony | 10 | Montana | 61 | 43 | 7.02% | 351 | 0.17 |
| Deerfield Colony | 11 | Montana | 34 | 0 | 36% | 60 | 0.57 |
| Ayers Ranch Colony | 12 | Montana | 29 | 66 | -14.71% | 66 | 0.44 |
| Warm Spring Creek | 13 | Montana | 17 | 0 | 6.25% | 40 | 0.42 |
| Danvers | 14 | Montana | 8 | 10 | 0% | 30 | 0.27 |
| Brooks | 15 | Montana | 0 | 57 | 0% | 0 | 0.09 |
| King Ranch Colony | 16 | Montana | 0 | 69 | 0% | 0 | 1.11 |
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.
Lewistown is the largest city in Fergus County.
King Ranch Colony is the smallest city in Fergus County.
There are 16 cities in Fergus County, Montana.