Mermentau, LA ZIP code
The ZIP code for Mermentau, Louisiana is 70556. It is in Acadia Parish.
- Population in these ZIPs
- 627
- Avg. median income
- $117,800population-weighted
- Typical home value
- $55,300population-weighted
- Metro area
- Lafayette, LA
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Mermentau, LA ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 70556 | 627 | $117,764 | $55,300 |
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 Mermentau
- Evangeline 4 mi
- Egan 6 mi
- Morse 6 mi
- Jennings 7 mi
- Estherwood 8 mi
- Roanoke 10 mi
- Iota 11 mi
- Gueydan 12 mi
- Crowley 15 mi
- Welsh 16 mi
- Lake Arthur 18 mi
- Basile 18 mi
Frequently asked questions
What is the ZIP code for Mermentau, LA?
The ZIP code for Mermentau, LA is 70556.
What county is Mermentau, Louisiana in?
Mermentau ZIP codes are in Acadia Parish.