7 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Crowley | 1 | 11,100 | 11,678 | -1.03% | 1,897 | 6 | City |
| Rayne | 2 | 6,918 | 7,243 | -0.93% | 1,824 | 4 | City |
| Church Point | 3 | 3,996 | 4,175 | -0.89% | 1,381 | 3 | Town |
| Iota | 4 | 1,244 | 1,306 | -1.03% | 980 | 1 | Town |
| Estherwood | 5 | 674 | 698 | -0.74% | 362 | 2 | Village |
| Morse | 6 | 599 | 593 | 0.17% | 428 | 1 | Village |
| Mermentau | 7 | 490 | 519 | -1.21% | 230 | 2 | Village |
Crowley is the largest city in Acadia Parish, with a population of 11,100.
Mermentau is the smallest city in Acadia Parish, with a population of 490.
There are 7 cities in Acadia Parish, Louisiana.