15 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Oakley township | 1 | 2,045 | 2,162 | -1.45% | 19 | 107.37 | Township |
| Oakley | 2 | 1,946 | 2,035 | -0.92% | 1,012 | 1.92 | City |
| Winona township | 3 | 227 | 248 | -2.58% | 2 | 107.11 | Township |
| Winona | 4 | 174 | 188 | -1.69% | 667 | 0.26 | City |
| Monument township | 5 | 116 | 118 | 0% | 1 | 106.80 | Township |
| Monument | 6 | 98 | 35 | 7.69% | 182 | 0.54 | CDP |
| Russell Springs township | 7 | 50 | 52 | 0% | 0.00 | 107.63 | Township |
| Western township | 8 | 44 | 47 | -2.22% | 0.00 | 107.59 | Township |
| McAllaster township | 9 | 34 | 35 | 0% | 0.00 | 106.41 | Township |
| Paxton township | 10 | 28 | 29 | 0% | 0.00 | 71.75 | Township |
| Russell Springs | 11 | 22 | 24 | 0% | 31 | 0.71 | City |
| Augustine township | 12 | 19 | 22 | -5% | 0.00 | 72.18 | Township |
| Elkader township | 13 | 12 | 12 | 0% | 0.00 | 107.51 | Township |
| Logansport township | 14 | 8 | 8 | 0% | 0.00 | 107.19 | Township |
| Lees township | 15 | 6 | 6 | 0% | 0.00 | 71.47 | Township |
Oakley township is the largest city in Logan County, with a population of 2,045.
Lees township is the smallest city in Logan County.
There are 15 cities in Logan County, Kansas.