33 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Marysville | 1 | 3,383 | 3,437 | -0.32% | 742 | 4.56 | City |
| Marysville township | 2 | 2,513 | 2,437 | 0.8% | 51 | 49.74 | Township |
| Blue Rapids City township | 3 | 1,001 | 1,018 | -0.6% | 28 | 35.52 | Township |
| Blue Rapids | 4 | 921 | 928 | -0.11% | 464 | 1.99 | City |
| Vermillion township | 5 | 864 | 889 | -0.8% | 24 | 35.79 | Township |
| Waterville township | 6 | 753 | 776 | -0.79% | 21 | 35.51 | Township |
| Frankfort | 7 | 712 | 724 | -0.28% | 707 | 1.01 | City |
| Waterville | 8 | 646 | 660 | -0.46% | 1,313 | 0.49 | City |
| Murray township | 9 | 605 | 603 | 0.17% | 17 | 35.55 | Township |
| Home township | 10 | 530 | 521 | 0.38% | 15 | 35.60 | Township |
| Axtell | 11 | 400 | 397 | 0.25% | 765 | 0.52 | City |
| Guittard township | 12 | 380 | 387 | -0.26% | 11 | 35.78 | Township |
| Bremen | 13 | 271 | 45 | 7.11% | 160 | 1.69 | CDP |
| Marysville township | 14 | 262 | 267 | -0.38% | 9 | 30.66 | Township |
| Herkimer township | 15 | 211 | 221 | -1.4% | 6 | 35.59 | Township |
| Oketo township | 16 | 202 | 205 | 0% | 6 | 35.18 | Township |
| Beattie | 17 | 193 | 200 | -0.52% | 843 | 0.23 | City |
| Noble township | 18 | 174 | 180 | -1.14% | 5 | 35.40 | Township |
| Elm Creek township | 19 | 150 | 153 | -0.66% | 4 | 35.62 | Township |
| Richland township | 20 | 141 | 144 | -0.7% | 4 | 35.64 | Township |
| Center township | 21 | 132 | 135 | -0.75% | 4 | 37.69 | Township |
| St. Bridget township | 22 | 128 | 137 | -2.29% | 4 | 35.44 | Township |
| Cottage Hill township | 23 | 121 | 124 | -0.82% | 3 | 35.94 | Township |
| Summerfield | 24 | 120 | 124 | -0.83% | 348 | 0.34 | City |
| Wells township | 25 | 113 | 116 | -0.88% | 3 | 37.67 | Township |
| Vermillion | 26 | 78 | 80 | 0% | 375 | 0.21 | City |
| Blue Rapids township | 27 | 76 | 79 | -1.3% | 2 | 35.83 | Township |
| Cleveland township | 28 | 70 | 73 | -1.41% | 2 | 35.62 | Township |
| Balderson township | 29 | 68 | 71 | -1.45% | 2 | 37.58 | Township |
| Oketo | 30 | 64 | 64 | 0% | 621 | 0.10 | City |
| Clear Fork township | 31 | 49 | 43 | 4.26% | 1 | 35.83 | Township |
| Bigelow township | 32 | 40 | 40 | 0% | 1 | 37.24 | Township |
| Home | 33 | 29 | 171 | -23.68% | 7 | 3.96 | CDP |
Marysville is the largest city in Marshall County, with a population of 3,383.
Home is the smallest city in Marshall County.
There are 33 cities in Marshall County, Kansas.