40 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Devils Lake | 1 | 7,115 | 7,164 | -0.14% | 1,022 | 6.96 | City |
| Creel township | 2 | 1,357 | 1,412 | -0.88% | 106 | 12.79 | Township |
| North Creel township | 3 | 370 | 381 | -0.54% | 12 | 29.76 | Township |
| South Minnewaukan township | 4 | 306 | 322 | -1.29% | 11 | 29.08 | Township |
| Poplar Grove township | 5 | 272 | 275 | 0% | 17 | 16.22 | Township |
| Grand Harbor township | 6 | 215 | 222 | -0.46% | 6 | 34.12 | Township |
| Edmore | 7 | 136 | 140 | -0.73% | 461 | 0.29 | City |
| Crary | 8 | 111 | 113 | 0% | 117 | 0.95 | City |
| Starkweather | 9 | 95 | 99 | -1.04% | 731 | 0.13 | City |
| Bartlett township | 10 | 81 | 85 | -1.22% | 2 | 34.69 | Township |
| Ontario township | 11 | 69 | 73 | -1.43% | 2 | 33.91 | Township |
| Webster township | 12 | 62 | 63 | 0% | 2 | 36.07 | Township |
| Freshwater township | 13 | 61 | 62 | 0% | 2 | 32.93 | Township |
| Stevens township | 14 | 60 | 61 | 0% | 2 | 33.67 | Township |
| Coulee township | 15 | 51 | 52 | 0% | 1 | 35.72 | Township |
| Hammer township | 16 | 47 | 48 | 0% | 1 | 35.25 | Township |
| Morris township | 17 | 46 | 47 | 0% | 1 | 32.98 | Township |
| Odessa township | 18 | 39 | 40 | 0% | 1 | 37.89 | Township |
| Dry Lake township | 19 | 37 | 38 | 0% | 1 | 24.67 | Township |
| Highland Center township | 20 | 37 | 38 | 0% | 1 | 35.80 | Township |
| Sullivan township | 21 | 36 | 37 | 0% | 1 | 35.53 | Township |
| Triumph township | 22 | 33 | 34 | 0% | 1 | 36.11 | Township |
| Klingstrup township | 23 | 31 | 32 | 0% | 1 | 35.87 | Township |
| Brocket | 24 | 30 | 32 | 0% | 40 | 0.76 | City |
| Fancher township | 25 | 28 | 31 | -3.45% | 1 | 35.21 | Township |
| Northfield township | 26 | 28 | 31 | -3.45% | 1 | 34.76 | Township |
| Hampden | 27 | 26 | 28 | 0% | 151 | 0.17 | City |
| Harding township | 28 | 25 | 28 | -3.85% | 1 | 36.45 | Township |
| Lawton township | 29 | 21 | 21 | 0% | 1 | 34.44 | Township |
| Newland township | 30 | 21 | 21 | 0% | 1 | 35.65 | Township |
| Pelican township | 31 | 21 | 24 | -4.55% | 1 | 25.80 | Township |
| Lillehoff township | 32 | 20 | 23 | -4.76% | 1 | 33.72 | Township |
| Prospect township | 33 | 20 | 20 | 0% | 1 | 35.76 | Township |
| Newbre township | 34 | 19 | 22 | -5% | 1 | 34.08 | Township |
| Royal township | 35 | 19 | 19 | 0% | 1 | 34.99 | Township |
| Lawton | 36 | 17 | 17 | 0% | 19 | 0.91 | City |
| Chain Lakes township | 37 | 15 | 15 | 0% | 1 | 25.65 | Township |
| De Groat township | 38 | 15 | 15 | 0% | 0.00 | 31.82 | Township |
| Overland township | 39 | 15 | 15 | 0% | 0.00 | 35.60 | Township |
| Cato township | 40 | 14 | 14 | 0% | 0.00 | 35.64 | Township |
Devils Lake is the largest city in Ramsey County, with a population of 7,115.
Cato township is the smallest city in Ramsey County.
There are 40 cities in Ramsey County, North Dakota.