15 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Ponca City | 1 | 24,265 | 24,367 | -0.08% | 1,320 | 18.38 | City |
| Blackwell | 2 | 6,074 | 6,068 | 0.02% | 1,088 | 5.58 | City |
| Tonkawa | 3 | 2,988 | 3,005 | -0.1% | 724 | 4.13 | City |
| Newkirk | 4 | 2,184 | 2,164 | 0.18% | 1,612 | 1.35 | City |
| McCord | 5 | 1,671 | 1,582 | 0.91% | 382 | 4.37 | CDP |
| White Eagle | 6 | 550 | 510 | 7.21% | 94 | 5.87 | CDP |
| Tonkawa Tribal Housing | 7 | 430 | 353 | 7.23% | 1,026 | 0.42 | CDP |
| Kaw City | 8 | 332 | 322 | 0.61% | 110 | 3.01 | City |
| Braman | 9 | 164 | 164 | 0% | 837 | 0.20 | Town |
| Nardin | 10 | 140 | 11 | 6.87% | 135 | 1.04 | CDP |
| Kildare | 11 | 88 | 88 | 0% | 647 | 0.14 | Town |
| Webb City | 12 | 60 | 59 | 0% | 238 | 0.25 | Town |
| Peckham | 13 | 50 | 37 | 6.38% | 272 | 0.18 | CDP |
| Grainola | 14 | 31 | 33 | 0% | 129 | 0.24 | Town |
| Foraker | 15 | 15 | 15 | 0% | 58 | 0.26 | Town |
Ponca City is the largest city in Kay County, with a population of 24,265.
Foraker is the smallest city in Kay County.
There are 15 cities in Kay County, Oklahoma.