City | Rank | 2026 Pop.↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Breaux Bridge | 1 | 7,683 | 7,482 | 0.41% | 996 | 8 | City |
| St. Martinville | 2 | 5,198 | 5,388 | -0.59% | 1,640 | 3 | City |
| Henderson | 3 | 1,592 | 1,607 | -0.13% | 533 | 3 | Town |
Breaux Bridge is the largest city in St. Martin Parish, with a population of 7,683.
Henderson is the smallest city in St. Martin Parish, with a population of 1,592.
There are 3 cities in St. Martin Parish, Louisiana.