12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thibodaux | 1 | 15,476 | 15,901 | -0.55% | 2,279 | 6.79 | City |
| Raceland | 2 | 11,319 | 10,835 | 0.67% | 525 | 21.57 | CDP |
| Galliano | 3 | 6,432 | 7,514 | -1.27% | 577 | 11.14 | CDP |
| Larose | 4 | 5,736 | 6,463 | -1.9% | 528 | 10.87 | CDP |
| Cut Off | 5 | 5,530 | 5,362 | -0.54% | 378 | 14.64 | CDP |
| Lockport | 6 | 2,302 | 2,491 | -1.62% | 2,032 | 1.13 | Town |
| Presquille | 7 | 2,218 | 2,015 | 1.23% | 2,833 | 0.78 | CDP |
| Golden Meadow | 8 | 1,565 | 1,750 | -2.31% | 640 | 2.45 | Town |
| Lockport Heights | 9 | 1,520 | 1,706 | 1.06% | 1,163 | 1.31 | CDP |
| Bayou Gauche | 10 | 1,332 | 1,703 | -3.62% | 104 | 12.85 | CDP |
| Mathews | 11 | 1,242 | 1,830 | -4.9% | 312 | 3.98 | CDP |
| Kraemer | 12 | 1,177 | 1,041 | 1.47% | 224 | 5.25 | CDP |
Thibodaux is the largest city in Lafourche Parish, with a population of 15,476.
Kraemer is the smallest city in Lafourche Parish.
There are 12 cities in Lafourche Parish, Louisiana.