| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Thibodaux | 1 | 15,498 | 15,904 | -0.48% | 2,282 | 7 | City |
| Lockport | 2 | 2,299 | 2,487 | -1.46% | 2,029 | 1 | Town |
| Golden Meadow | 3 | 1,607 | 1,750 | -1.77% | 657 | 2 | Town |
Thibodaux is the largest city in Lafourche Parish, with a population of 15,498.
Golden Meadow is the smallest city in Lafourche Parish, with a population of 1,607.
There are 3 cities in Lafourche Parish, Louisiana.