Ascension Parish, Louisiana ZIP codes
11 ZIP codes are in Ascension Parish, plus 1 that cross in from neighboring parishes. It's part of the Baton Rouge, LA metro area.
- ZIP codes
- 11
- Population in these ZIPs
- 131,228
- Avg. median income
- $94,300population-weighted
- Cities & towns
- 10
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Ascension Parish
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 70346 | Donaldsonville | 9,927 | $35,280 | $180,300 |
| 70707 PO Box | Gonzales | — | — | — |
| 70718 PO Box | Brittany | — | — | — |
| 70725 | Darrow | 943 | — | $266,400 |
| 70728 PO Box | Duplessis | — | — | — |
| 70734 | Geismar | 9,213 | $128,975 | $381,000 |
| 70737 | Gonzales | 49,084 | $82,521 | $295,200 |
| 70738 PO Box | Burnside | — | — | — |
| 70769 | Prairieville | 49,278 | $109,404 | $341,600 |
| 70774 | Saint Amant | 10,041 | $102,422 | $279,700 |
| 70778 | Sorrento | 2,742 | $101,967 | $282,400 |
ZIP codes partly in Ascension Parish
These ZIP codes are mostly in a neighboring parish but cover part of Ascension Parish.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 70449 | Maurepas | Livingston Parish | 3,092 | $78,405 | $208,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Ascension Parish
Nearby parishes
Frequently asked questions
How many ZIP codes are in Ascension Parish, Louisiana?
11 ZIP codes are mainly in Ascension Parish, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Ascension Parish?
ZIP codes in Ascension Parish use the city names Brittany, Burnside, Darrow, Donaldsonville, Duplessis, Geismar, Gonzales, Prairieville, Saint Amant and Sorrento.
What metro area is Ascension Parish in?
Ascension Parish is part of the Baton Rouge, LA metropolitan statistical area.