11 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Warren | 1 | 1,533 | 1,597 | -0.84% | 1,053 | 1.46 | City |
| Stephen | 2 | 569 | 591 | -0.7% | 723 | 0.79 | City |
| Argyle | 3 | 529 | 541 | -0.38% | 351 | 1.51 | City |
| Alvarado | 4 | 372 | 387 | -0.8% | 1,780 | 0.21 | City |
| Newfolden | 5 | 339 | 354 | -0.88% | 334 | 1.02 | City |
| Middle River | 6 | 290 | 304 | -1.02% | 584 | 0.50 | City |
| Oslo | 7 | 234 | 244 | -0.85% | 631 | 0.37 | City |
| Grygla | 8 | 172 | 179 | -0.58% | 298 | 0.58 | City |
| Holt | 9 | 86 | 90 | -1.15% | 86 | 1 | City |
| Viking | 10 | 77 | 81 | -1.28% | 149 | 0.52 | City |
| Strandquist | 11 | 65 | 69 | -1.52% | 249 | 0.26 | City |
Warren is the largest city in Marshall County, with a population of 1,533.
Strandquist is the smallest city in Marshall County.
There are 11 cities in Marshall County, Minnesota.