Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Stilwell | 1 | 3,794 | 3,700 | 0.61% | 1,083 | 3.5 | City |
| Westville | 2 | 1,405 | 1,408 | -0.07% | 748 | 1.9 | Town |
| West Siloam Springs | 3 | 1,066 | 1,026 | 0.95% | 271 | 3.9 | Town |
| Flint Creek | 4 | 1,008 | 735 | 1.92% | 158 | 6.4 | CDP |
| Remy | 5 | 718 | 658 | 1.56% | 56 | 12.9 | CDP |
| Cherry Tree | 6 | 700 | 1,058 | -1.82% | 61 | 11.5 | CDP |
| Rocky Mountain | 7 | 628 | 682 | 2.45% | 41 | 15.3 | CDP |
| Lyons Switch | 8 | 617 | 612 | 3.87% | 49 | 12.7 | CDP |
| Old Green | 9 | 556 | 526 | 3.15% | 177 | 3.1 | CDP |
| Fairfield | 10 | 527 | 714 | -0.75% | 108 | 4.9 | CDP |
| Baron | 11 | 455 | 228 | 7.82% | 77 | 5.9 | CDP |
| Wauhillau | 12 | 421 | 420 | 1.45% | 43 | 9.8 | CDP |
| Long | 13 | 393 | 330 | 0.26% | 52 | 7.6 | CDP |
| Titanic | 14 | 391 | 419 | 0.77% | 73 | 5.3 | CDP |
| Chewey | 15 | 381 | 395 | 4.67% | 15 | 25.7 | CDP |
| Chance | 16 | 370 | 247 | 7.87% | 58 | 6.3 | CDP |
| Nicut | 17 | 346 | 312 | -0.29% | 21 | 16.2 | CDP |
| Liberty | 18 | 320 | 179 | 7.74% | 138 | 2.3 | CDP |
| Bell | 19 | 311 | 390 | -4.89% | 66 | 4.7 | CDP |
| Peavine | 20 | 300 | 361 | -2.91% | 32 | 9.4 | CDP |
| Watts | 21 | 280 | 272 | 0.72% | 526 | 0.5 | Town |
| Short | 22 | 232 | 182 | -2.11% | 21 | 10.8 | CDP |
| Belfonte | 23 | 225 | 402 | -5.06% | 29 | 7.9 | CDP |
| Cloud Creek | 24 | 220 | 381 | 3.29% | 15 | 14.8 | CDP |
| Honey Hill | 25 | 214 | 168 | 8.08% | 73 | 2.9 | CDP |
| Greasy | 26 | 200 | 260 | -6.1% | 20 | 10.0 | CDP |
| Proctor | 27 | 186 | 378 | -1.59% | 17 | 10.7 | CDP |
| Elm Grove | 28 | 147 | 342 | -2% | 61 | 2.4 | CDP |
| Bull Hollow | 29 | 146 | 125 | 8.15% | 27 | 5.4 | CDP |
| Christie | 30 | 121 | 155 | -5.47% | 13 | 9.6 | CDP |
| Pumpkin Hollow | 31 | 116 | 166 | 8.41% | 8 | 14.7 | CDP |
| West Peavine | 32 | 116 | 301 | -6.45% | 15 | 7.8 | CDP |
| Flute Springs | 33 | 92 | 128 | -2.13% | 21 | 4.3 | CDP |
| Cave Spring | 34 | 89 | 80 | 8.54% | 18 | 4.9 | CDP |
| Dripping Springs | 35 | 54 | 54 | 8% | 39 | 1.4 | CDP |
| Mulberry | 36 | 54 | 98 | -10% | 58 | 0.9 | CDP |
| Bunch | 37 | 43 | 49 | 7.5% | 3 | 15.3 | CDP |
| Elohim City | 38 | 43 | 33 | 7.5% | 47 | 0.9 | CDP |
| Zion | 39 | 42 | 35 | 7.69% | 41 | 1.0 | CDP |
| Piney | 40 | 8 | 32 | -46.67% | 2 | 4.5 | CDP |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Stilwell is the largest city in Adair County.
Piney is the smallest city in Adair County.
There are 40 cities in Adair County, Oklahoma.