21 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Denham Springs | 1 | 9,324 | 9,295 | 0.03% | 1,273 | 7 | City |
| Denham Springs | 2 | 9,324 | 9,307 | 0.03% | 1,273 | 7 | City |
| Walker | 3 | 6,410 | 6,361 | 0.12% | 972 | 7 | Town |
| Walker | 4 | 6,410 | 6,367 | 0.12% | 972 | 7 | Town |
| Amite City | 5 | 4,102 | 4,010 | 0.39% | 1,058 | 4 | Town |
| Amite City | 6 | 4,102 | 4,020 | 0.39% | 1,058 | 4 | Town |
| Livingston | 7 | 2,005 | 1,875 | 1.26% | 622 | 3 | Town |
| Livingston | 8 | 2,005 | 1,877 | 1.26% | 622 | 3 | Town |
| Watson | 9 | 1,545 | 1,225 | 2.25% | 1,611 | 1 | CDP |
| Killian | 10 | 1,273 | 1,169 | 1.6% | 117 | 11 | Town |
| Killian | 11 | 1,273 | 1,173 | 1.6% | 117 | 11 | Town |
| Albany | 12 | 1,248 | 1,238 | 0.08% | 931 | 1 | Town |
| Albany | 13 | 1,248 | 1,240 | 0.08% | 931 | 1 | Town |
| French Settlement | 14 | 1,172 | 1,067 | 1.74% | 430 | 3 | Village |
| French Settlement | 15 | 1,172 | 1,071 | 1.74% | 430 | 3 | Village |
| Port Vincent | 16 | 709 | 645 | 1.72% | 416 | 2 | Village |
| Port Vincent | 17 | 709 | 647 | 1.72% | 416 | 2 | Village |
| Springfield | 18 | 463 | 425 | 1.54% | 330 | 1 | Town |
| Springfield | 19 | 463 | 427 | 1.54% | 330 | 1 | Town |
| Montpelier | 20 | 195 | 199 | -0.51% | 104 | 2 | Village |
| Montpelier | 21 | 195 | 198 | -0.51% | 104 | 2 | Village |
Denham Springs is the largest city in Livingston Parish, with a population of 9,324.
Montpelier is the smallest city in Livingston Parish, with a population of 195.
There are 21 cities in Livingston Parish, Louisiana.