1 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Napoleonville | 1 | 497 | 541 | -1.78% | 2,958 | 0 | Village |
Napoleonville is the largest city in Assumption Parish, with a population of 497.
Napoleonville is the smallest city in Assumption Parish, with a population of 497.
There is 1 city in Assumption Parish, Louisiana.