| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Oklahoma City | 1 | 727,550 | 682,938 | 1.07% | 1,199 | 607 | City |
| Norman | 2 | 131,616 | 128,171 | 0.51% | 737 | 179 | City |
| Moore | 3 | 63,775 | 63,064 | 0.26% | 2,887 | 22 | City |
| Midwest City | 4 | 58,839 | 58,460 | 0.07% | 2,412 | 24 | City |
| Noble | 5 | 7,934 | 7,027 | 2.4% | 622 | 13 | City |
| Slaughterville | 6 | 4,365 | 4,187 | 0.76% | 113 | 39 | Town |
| Goldsby | 7 | 3,792 | 2,713 | 5.6% | 145 | 26 | Town |
| Pink | 8 | 2,222 | 2,088 | 1% | 62 | 36 | Town |
| Lexington | 9 | 2,055 | 2,012 | 0.44% | 852 | 2 | City |
| Valley Brook | 10 | 631 | 662 | -0.79% | 2,408 | 0 | Town |
| Tribbey | 11 | 344 | 329 | 0.58% | 18 | 19 | Town |
| Etowah | 12 | 162 | 160 | 0% | 82 | 2 | Town |
Oklahoma City is the largest city in Cleveland County, with a population of 727,550.
Etowah is the smallest city in Cleveland County, with a population of 162.
There are 12 cities in Cleveland County, Oklahoma.