75 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Mankato | 1 | 46,914 | 44,575 | 0.98% | 2,358 | 20 | City |
| Mankato | 2 | 46,914 | 44,637 | 0.98% | 2,358 | 20 | City |
| North Mankato | 3 | 14,102 | 14,274 | -0.28% | 2,191 | 6 | City |
| North Mankato | 4 | 14,102 | 14,300 | -0.28% | 2,191 | 6 | City |
| Eagle Lake | 5 | 3,343 | 3,278 | 0.3% | 1,737 | 2 | City |
| Eagle Lake | 6 | 3,343 | 3,290 | 0.3% | 1,737 | 2 | City |
| Lake Crystal | 7 | 2,471 | 2,538 | -0.56% | 1,448 | 2 | City |
| Lake Crystal | 8 | 2,471 | 2,541 | -0.56% | 1,448 | 2 | City |
| Mankato | 9 | 1,722 | 1,756 | -0.69% | 71 | 24 | Township |
| Mankato | 10 | 1,722 | 1,757 | -0.69% | 71 | 24 | Township |
| Mapleton | 11 | 1,622 | 1,704 | -1.04% | 1,187 | 1 | City |
| Mapleton | 12 | 1,622 | 1,705 | -1.04% | 1,187 | 1 | City |
| South Bend | 13 | 1,555 | 1,587 | -0.64% | 95 | 16 | Township |
| South Bend | 14 | 1,555 | 1,590 | -0.64% | 95 | 16 | Township |
| Madison Lake | 15 | 1,329 | 1,250 | 1.14% | 982 | 1 | City |
| Madison Lake | 16 | 1,329 | 1,252 | 1.14% | 982 | 1 | City |
| Decoria | 17 | 1,100 | 1,126 | -0.72% | 31 | 36 | Township |
| Decoria | 18 | 1,100 | 1,129 | -0.72% | 31 | 36 | Township |
| Rapidan | 19 | 1,032 | 1,054 | -0.48% | 29 | 35 | Township |
| Rapidan | 20 | 1,032 | 1,057 | -0.48% | 29 | 35 | Township |
| Lime | 21 | 923 | 946 | -1.07% | 60 | 15 | Township |
| Lime | 22 | 923 | 949 | -1.07% | 60 | 15 | Township |
| Garden City | 23 | 821 | 839 | -0.61% | 25 | 33 | Township |
| Garden City | 24 | 821 | 839 | -0.61% | 25 | 33 | Township |
| Le Ray | 25 | 744 | 760 | -0.67% | 23 | 32 | Township |
| Le Ray | 26 | 744 | 760 | -0.67% | 23 | 32 | Township |
| St. Clair | 27 | 711 | 740 | -0.84% | 1,096 | 1 | City |
| St. Clair | 28 | 711 | 740 | -0.84% | 1,096 | 1 | City |
| Jamestown | 29 | 662 | 677 | -0.6% | 46 | 14 | Township |
| Jamestown | 30 | 662 | 677 | -0.6% | 46 | 14 | Township |
| Good Thunder | 31 | 541 | 560 | -0.73% | 863 | 1 | City |
| Good Thunder | 32 | 541 | 560 | -0.73% | 863 | 1 | City |
| Judson | 33 | 520 | 531 | -0.57% | 14 | 36 | Township |
| Judson | 34 | 520 | 531 | -0.57% | 14 | 36 | Township |
| Amboy | 35 | 509 | 536 | -1.17% | 1,631 | 0 | City |
| Amboy | 36 | 509 | 536 | -1.17% | 1,631 | 0 | City |
| McPherson | 37 | 414 | 424 | -0.72% | 12 | 35 | Township |
| McPherson | 38 | 414 | 424 | -0.72% | 12 | 35 | Township |
| Eagle Lake | 39 | 392 | 395 | -0.25% | 13 | 31 | Township |
| Eagle Lake | 40 | 392 | 395 | -0.25% | 13 | 31 | Township |
| Beauford | 41 | 372 | 384 | -1.06% | 10 | 36 | Township |
| Beauford | 42 | 372 | 384 | -1.06% | 10 | 36 | Township |
| Medo | 43 | 316 | 321 | 0% | 9 | 35 | Township |
| Medo | 44 | 316 | 321 | 0% | 9 | 35 | Township |
| Vernon Center | 45 | 311 | 328 | -1.27% | 636 | 0 | City |
| Vernon Center | 46 | 311 | 328 | -1.27% | 636 | 0 | City |
| Lyra | 47 | 291 | 296 | 0% | 8 | 35 | Township |
| Lyra | 48 | 291 | 296 | 0% | 8 | 35 | Township |
| Butternut Valley | 49 | 288 | 296 | -1.03% | 8 | 35 | Township |
| Butternut Valley | 50 | 288 | 296 | -1.03% | 8 | 35 | Township |
| Skyline | 51 | 281 | 286 | -0.35% | 1,434 | 0 | City |
| Skyline | 52 | 281 | 286 | -0.35% | 1,434 | 0 | City |
| Mapleton | 53 | 275 | 279 | 0% | 8 | 34 | Township |
| Mapleton | 54 | 275 | 279 | 0% | 8 | 34 | Township |
| Cambria | 55 | 247 | 253 | -0.8% | 13 | 19 | Township |
| Cambria | 56 | 247 | 253 | -0.8% | 13 | 19 | Township |
| Shelby | 57 | 238 | 247 | -1.24% | 7 | 35 | Township |
| Shelby | 58 | 238 | 247 | -1.24% | 7 | 35 | Township |
| Sterling | 59 | 236 | 242 | -0.84% | 7 | 34 | Township |
| Sterling | 60 | 236 | 242 | -0.84% | 7 | 34 | Township |
| Vernon Center | 61 | 235 | 242 | -1.26% | 7 | 35 | Township |
| Vernon Center | 62 | 235 | 242 | -1.26% | 7 | 35 | Township |
| Pemberton | 63 | 219 | 232 | -1.35% | 1,165 | 0 | City |
| Pemberton | 64 | 219 | 232 | -1.35% | 1,165 | 0 | City |
| Danville | 65 | 215 | 222 | -0.92% | 6 | 36 | Township |
| Danville | 66 | 215 | 222 | -0.92% | 6 | 36 | Township |
| Garden City | 67 | 212 | 233 | -1.4% | 118 | 2 | CDP |
| Lincoln | 68 | 208 | 209 | 0.48% | 6 | 36 | Township |
| Lincoln | 69 | 208 | 209 | 0.48% | 6 | 36 | Township |
| Pleasant Mound | 70 | 194 | 200 | -1.02% | 5 | 36 | Township |
| Pleasant Mound | 71 | 194 | 200 | -1.02% | 5 | 36 | Township |
| Ceresco | 72 | 178 | 184 | -1.11% | 5 | 36 | Township |
| Ceresco | 73 | 178 | 184 | -1.11% | 5 | 36 | Township |
| Amboy | 74 | 136 | 139 | -0.73% | 4 | 36 | Township |
| Amboy | 75 | 136 | 139 | -0.73% | 4 | 36 | Township |
Mankato is the largest city in Blue Earth County, with a population of 46,914.
Amboy is the smallest city in Blue Earth County, with a population of 136.
There are 75 cities in Blue Earth County, Minnesota.