12 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Oklahoma City | 1 | 727,836 | 683,084 | 1.04% | 1,199 | 607 | City |
| Norman | 2 | 132,425 | 128,179 | 0.54% | 741 | 179 | City |
| Moore | 3 | 64,239 | 63,057 | 0.31% | 2,908 | 22 | City |
| Midwest City | 4 | 58,525 | 58,465 | 0.02% | 2,399 | 24 | City |
| Noble | 5 | 8,152 | 7,033 | 2.35% | 639 | 13 | City |
| Slaughterville | 6 | 4,397 | 4,177 | 0.85% | 114 | 39 | Town |
| Goldsby | 7 | 3,917 | 2,713 | 5.41% | 149 | 26 | Town |
| Pink | 8 | 2,222 | 2,093 | 1% | 62 | 36 | Town |
| Lexington | 9 | 2,075 | 2,014 | 0.48% | 861 | 2 | City |
| Valley Brook | 10 | 634 | 663 | -0.78% | 2,420 | 0 | Town |
| Tribbey | 11 | 351 | 335 | 0.86% | 18 | 19 | Town |
| Etowah | 12 | 167 | 161 | 0.6% | 84 | 2 | Town |
Oklahoma City is the largest city in Cleveland County, with a population of 727,836.
Etowah is the smallest city in Cleveland County, with a population of 167.
There are 12 cities in Cleveland County, Oklahoma.