13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tulsa | 1 | 415,526 | 413,663 | 0.09% | 2,101 | 198 | City |
| Broken Arrow | 2 | 124,956 | 113,955 | 1.79% | 1,985 | 63 | City |
| Owasso | 3 | 43,926 | 38,401 | 2.58% | 2,581 | 17 | City |
| Bixby | 4 | 32,480 | 28,719 | 2.37% | 1,264 | 26 | City |
| Jenks | 5 | 28,317 | 26,074 | 1.61% | 1,653 | 17 | City |
| Sand Springs | 6 | 20,425 | 19,947 | 0.47% | 1,031 | 20 | City |
| Glenpool | 7 | 14,780 | 13,714 | 1.46% | 1,337 | 11 | City |
| Collinsville | 8 | 10,190 | 8,023 | 4.44% | 1,232 | 8 | City |
| Skiatook | 9 | 8,984 | 8,459 | 1.18% | 655 | 14 | City |
| Oakhurst | 10 | 1,966 | 2,435 | -0.76% | 355 | 6 | CDP |
| Sperry | 11 | 1,252 | 1,209 | 0.64% | 701 | 2 | Town |
| Leonard | 12 | 240 | 191 | 7.14% | 159 | 2 | CDP |
| Fair Oaks | 13 | 75 | 65 | 2.74% | 13 | 6 | Town |
Tulsa is the largest city in Tulsa County, with a population of 415,526.
Fair Oaks is the smallest city in Tulsa County, with a population of 75.
There are 13 cities in Tulsa County, Oklahoma.