| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Hammond | 1 | 24,964 | 19,616 | 3.88% | 1,751 | 14 | City |
| Ponchatoula | 2 | 7,738 | 7,835 | -0.22% | 1,640 | 5 | City |
| Kentwood | 3 | 2,227 | 2,164 | 0.45% | 313 | 7 | Town |
| Independence | 4 | 1,672 | 1,630 | 0.42% | 693 | 2 | Town |
| Roseland | 5 | 914 | 885 | 0.44% | 440 | 2 | Town |
| Tickfaw | 6 | 694 | 673 | 0.43% | 429 | 2 | Village |
| Tangipahoa | 7 | 461 | 429 | 1.1% | 459 | 1 | Village |
Hammond is the largest city in Tangipahoa Parish, with a population of 24,964.
Tangipahoa is the smallest city in Tangipahoa Parish, with a population of 461.
There are 7 cities in Tangipahoa Parish, Louisiana.