| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Gonzales | 1 | 14,331 | 12,148 | 2.88% | 1,568 | 9 | City |
| Donaldsonville | 2 | 7,164 | 6,766 | 0.99% | 1,896 | 4 | City |
| Sorrento | 3 | 1,640 | 1,536 | 1.11% | 450 | 4 | Town |
Gonzales is the largest city in Ascension Parish, with a population of 14,331.
Sorrento is the smallest city in Ascension Parish, with a population of 1,640.
There are 3 cities in Ascension Parish, Louisiana.