ZIP code · Geismar · Louisiana · United States
ZIP code 70734 — Geismar
ZIP code 70734 serves Geismar, Louisiana.
- Postal code
- 70734Single source Value from one source, not cross-checked.
- City
- Geismar
- County
- Ascension
- State
- Louisiana
- Country
- United States
- Coordinates
- 30.2196, -91.0079 — precision precise (locality)
View on OpenStreetMap - Population
- 9,880 (ZCTA, ACS 5-year)
- Median household income
- $124,059
- Median age
- 33.3
- Time zone
- America/Chicago (UTC−6 / UTC−5 DST)
- Area code
- 225 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS). Data generated on 2026-08-21. Methodology · Report an error on this page