| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Walnut Ridge | 1 | 5,497 | 5,405 | 0.35% | 329 | 17 | City |
| Hoxie | 2 | 2,562 | 2,602 | -0.23% | 384 | 7 | City |
| Black Rock | 3 | 706 | 590 | 1.29% | 215 | 3 | City |
| Imboden | 4 | 624 | 642 | -0.48% | 490 | 1 | Town |
| Portia | 5 | 527 | 420 | 2.33% | 408 | 1 | Town |
| Ravenden | 6 | 412 | 427 | -0.72% | 195 | 2 | Town |
| Strawberry | 7 | 257 | 266 | -0.77% | 110 | 2 | Town |
| Lynn | 8 | 240 | 249 | -0.83% | 104 | 2 | Town |
| Sedgwick | 9 | 156 | 161 | -0.64% | 301 | 1 | Town |
| Alicia | 10 | 134 | 141 | -1.47% | 310 | 0 | Town |
| Powhatan | 11 | 99 | 104 | -1% | 181 | 1 | Town |
| Minturn | 12 | 85 | 88 | -1.16% | 149 | 1 | Town |
| Smithville | 13 | 81 | 85 | -1.22% | 122 | 1 | Town |
Walnut Ridge is the largest city in Lawrence County, with a population of 5,497.
Smithville is the smallest city in Lawrence County, with a population of 81.
There are 13 cities in Lawrence County, Arkansas.