Founded in 1807, Ascension Parish is one of 64 parishes in the state of Louisiana. Historically, Ascension Parish was one of the original 19 parishes. The city of Donaldsonville is the parish seat. With FIPS code of 5, Ascension Parish has a population of 128,369 and area of 303 square miles (785 km2).
List of all cities in Ascension Parish, LA alphabetically
| City/Town | Postal Code | Area Code |
| Brittany, LA | 70718 | 225 |
| Burnside, LA | 70738 | 225 |
| Darrow, LA | 70725 | 225 |
| Donaldsonville, LA | 70346 | 225 |
| Donaldsonvlle, LA | 70346 | 225 |
| Duplessis, LA | 70728 | 225 |
| Galvez, LA | 70769 | 225 |
| Geismar, LA | 70734 | 225 |
| Gonzales, LA | 70707 | 225 |
| 70737 | 225 | |
| Lake, LA | 70769 | 225 |
| McCall, LA | 70346 | 225 |
| Modeste, LA | 70346 | 225 |
| Prairieville, LA | 70769 | 225 |
| Saint Amant, LA | 70774 | 225 |
| Sorrento, LA | 70778 | 225 |