13 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Walnut Ridge | 1 | 5,534 | 5,402 | 0.47% | 331 | 17 | City |
| Hoxie | 2 | 2,585 | 2,602 | -0.15% | 388 | 7 | City |
| Black Rock | 3 | 640 | 589 | 1.59% | 195 | 3 | City |
| Imboden | 4 | 637 | 642 | -0.16% | 500 | 1 | Town |
| Portia | 5 | 486 | 420 | 2.75% | 376 | 1 | Town |
| Ravenden | 6 | 419 | 427 | -0.48% | 198 | 2 | Town |
| Strawberry | 7 | 260 | 265 | -0.38% | 111 | 2 | Town |
| Lynn | 8 | 251 | 255 | -0.4% | 109 | 2 | Town |
| Sedgwick | 9 | 156 | 161 | -0.64% | 301 | 1 | Town |
| Alicia | 10 | 135 | 139 | -0.74% | 313 | 0 | Town |
| Powhatan | 11 | 101 | 104 | -0.98% | 185 | 1 | Town |
| Minturn | 12 | 83 | 86 | -1.19% | 146 | 1 | Town |
| Smithville | 13 | 82 | 85 | -1.2% | 123 | 1 | Town |
Walnut Ridge is the largest city in Lawrence County, with a population of 5,534.
Smithville is the smallest city in Lawrence County, with a population of 82.
There are 13 cities in Lawrence County, Arkansas.