43 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cape Girardeau | 1 | 41,076 | 39,556 | 0.63% | 1,404 | 29 | City |
| Cape Girardeau | 2 | 41,076 | 39,786 | 0.63% | 1,404 | 29 | City |
| Jackson | 3 | 16,048 | 15,491 | 0.75% | 1,493 | 11 | City |
| Jackson | 4 | 16,048 | 15,453 | 0.75% | 1,493 | 11 | City |
| Jackson | 5 | 1,216 | 1,146 | 0.5% | 13 | 97 | Township |
| Jackson | 6 | 1,216 | 1,145 | 0.5% | 13 | 97 | Township |
| Jackson | 7 | 1,187 | 1,154 | -0.25% | 16 | 76 | Township |
| Jackson | 8 | 1,187 | 1,148 | -0.25% | 16 | 76 | Township |
| Jackson | 9 | 912 | 987 | -1.83% | 12 | 75 | Township |
| Jackson | 10 | 912 | 985 | -1.83% | 12 | 75 | Township |
| Jackson | 11 | 710 | 703 | 0% | 15 | 49 | Township |
| Jackson | 12 | 710 | 702 | 0% | 15 | 49 | Township |
| Gordonville | 13 | 631 | 623 | 0.32% | 809 | 1 | Village |
| Gordonville | 14 | 631 | 621 | 0.32% | 809 | 1 | Village |
| Jackson | 15 | 553 | 536 | 0.73% | 8 | 70 | Township |
| Jackson | 16 | 553 | 539 | 0.73% | 8 | 70 | Township |
| Millersville | 17 | 387 | 363 | 6.91% | 342 | 1 | CDP |
| Delta | 18 | 380 | 376 | 0.26% | 964 | 0 | City |
| Delta | 19 | 380 | 375 | 0.26% | 964 | 0 | City |
| Altenburg | 20 | 335 | 342 | -0.59% | 319 | 1 | City |
| Altenburg | 21 | 335 | 342 | -0.59% | 319 | 1 | City |
| Dutchtown | 22 | 260 | 110 | 7% | 146 | 2 | CDP |
| Oak Ridge | 23 | 238 | 236 | 0% | 403 | 1 | Town |
| Oak Ridge | 24 | 238 | 235 | 0% | 403 | 1 | Town |
| Shawneetown | 25 | 215 | 196 | 6.97% | 364 | 1 | CDP |
| Jackson | 26 | 191 | 189 | 0.53% | 3 | 56 | Township |
| Jackson | 27 | 191 | 189 | 0.53% | 3 | 56 | Township |
| Burfordville | 28 | 161 | 83 | 7.33% | 481 | 0 | CDP |
| Haywood City | 29 | 135 | 133 | 0% | 315 | 0 | Village |
| Haywood City | 30 | 135 | 133 | 0% | 315 | 0 | Village |
| Jackson | 31 | 131 | 138 | -2.24% | 3 | 41 | Township |
| Jackson | 32 | 131 | 138 | -2.24% | 3 | 41 | Township |
| Jackson | 33 | 127 | 127 | 0% | 4 | 30 | Township |
| Jackson | 34 | 127 | 126 | 0% | 4 | 30 | Township |
| Pocahontas | 35 | 97 | 94 | 0% | 942 | 0 | Town |
| Pocahontas | 36 | 97 | 94 | 0% | 942 | 0 | Town |
| Allenville | 37 | 95 | 94 | 0% | 613 | 0 | Village |
| Allenville | 38 | 95 | 94 | 0% | 613 | 0 | Village |
| Whitewater | 39 | 85 | 84 | 0% | 397 | 0 | Town |
| Whitewater | 40 | 85 | 84 | 0% | 397 | 0 | Town |
| Old Appleton | 41 | 75 | 74 | 0% | 620 | 0 | Town |
| Old Appleton | 42 | 75 | 74 | 0% | 620 | 0 | Town |
| New Wells | 43 | 41 | 41 | 7.89% | 70 | 1 | CDP |
Cape Girardeau is the largest city in Cape Girardeau County, with a population of 41,076.
New Wells is the smallest city in Cape Girardeau County, with a population of 41.
There are 43 cities in Cape Girardeau County, Missouri.