9 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Cabot | 1 | 27,827 | 26,566 | 0.91% | 1,341 | 21 | City |
| Ward | 2 | 7,255 | 6,088 | 3.32% | 1,650 | 4 | City |
| Lonoke | 3 | 4,294 | 4,258 | 0.16% | 893 | 5 | City |
| Austin | 4 | 4,145 | 3,553 | 2.93% | 1,339 | 3 | City |
| England | 5 | 2,415 | 2,472 | -0.49% | 1,278 | 2 | City |
| Carlisle | 6 | 1,956 | 2,040 | -0.86% | 404 | 5 | City |
| Humnoke | 7 | 209 | 216 | -0.95% | 666 | 0 | City |
| Keo | 8 | 201 | 205 | -0.5% | 41 | 5 | Town |
| Coy | 9 | 83 | 85 | -1.19% | 124 | 1 | Town |
Cabot is the largest city in Lonoke County, with a population of 27,827.
Coy is the smallest city in Lonoke County, with a population of 83.
There are 9 cities in Lonoke County, Arkansas.