11 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Tulsa | 1 | 415,899 | 413,663 | 0.09% | 2,103 | 198 | City |
| Broken Arrow | 2 | 127,156 | 113,955 | 1.76% | 2,020 | 63 | City |
| Owasso | 3 | 45,031 | 38,401 | 2.52% | 2,646 | 17 | City |
| Bixby | 4 | 33,232 | 28,719 | 2.32% | 1,293 | 26 | City |
| Jenks | 5 | 28,766 | 26,074 | 1.59% | 1,655 | 17 | City |
| Sand Springs | 6 | 20,521 | 19,947 | 0.47% | 1,036 | 20 | City |
| Glenpool | 7 | 14,993 | 13,714 | 1.44% | 1,356 | 11 | City |
| Collinsville | 8 | 10,624 | 8,023 | 4.26% | 1,285 | 8 | City |
| Skiatook | 9 | 9,089 | 8,459 | 1.17% | 662 | 14 | City |
| Sperry | 10 | 1,261 | 1,209 | 0.72% | 590 | 2 | Town |
| Fair Oaks | 11 | 77 | 65 | 2.67% | 14 | 6 | Town |
Tulsa is the largest city in Tulsa County, with a population of 415,899.
Fair Oaks is the smallest city in Tulsa County, with a population of 77.
There are 11 cities in Tulsa County, Oklahoma.