Donaldsonville, LA ZIP code
The ZIP code for Donaldsonville, Louisiana is 70346. It is in Ascension Parish.
- Population in these ZIPs
- 9,927
- Avg. median income
- $35,300population-weighted
- Typical home value
- $180,300population-weighted
- Metro area
- Baton Rouge, LA
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Donaldsonville, LA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 70346 | 9,927 | $35,280 | $180,300 |
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 near Donaldsonville
- Darrow 3 mi
- Belle Rose 7 mi
- Geismar 7 mi
- Plattenville 8 mi
- Carville 9 mi
- White Castle 10 mi
- Saint James 10 mi
- Gonzales 10 mi
- Convent 11 mi
- Saint Gabriel 11 mi
- Sorrento 13 mi
- Prairieville 15 mi
Frequently asked questions
What is the ZIP code for Donaldsonville, LA?
The ZIP code for Donaldsonville, LA is 70346.
What county is Donaldsonville, Louisiana in?
Donaldsonville ZIP codes are in Ascension Parish.