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 FIPS 22005
- State
- Louisiana
- Country
- United States
- Coordinates
- 30.2196, -91.0079 — precision precise (locality)
View on OpenStreetMap - Population
- 9,880 (ZCTA, ACS 5-year)
- Population density
- 356 / sq mi
- Land area
- 27.7 sq mi (71.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $124,059
- Per-capita income
- $45,141
- Median age
- 33.3
- Households
- 2,988
- Housing units
- 3,141
- Median home value
- $306,200
- Median gross rent
- $978 / month
- Congressional district
- LA-2 (119th Congress)
- USDA hardiness zone
- 9a (20 to 25 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- 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.
Tools: compare 70734 with another ZIP · ZIPs within 25 miles · distance from 70734
Map of ZIP code 70734
Climate — monthly normals
Warmest month Aug (avg high 90°F), coldest Jan (avg low 43°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 66 | 72 | 78 | 84 | 89 | 90 | 90 | 87 | 80 | 70 | 64 |
| Avg low °F | 43 | 47 | 52 | 59 | 67 | 73 | 75 | 75 | 71 | 61 | 50 | 45 |
| Precip in | 5.5 | 4.4 | 4.4 | 4.8 | 5.6 | 7.1 | 6.3 | 6.0 | 4.5 | 5.0 | 4.1 | 5.0 |
NOAA 1991–2020 climate normals from the nearest station: CARVILLE 2 SW (7.2 mi) · NOAA NCEI
Places in ZIP 70734
- 5 schools
- 1 restaurants & cafés
- 2 parks
- 1 post offices
- 6 places of worship
- 4 gas stations
- 1 EV charging stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
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) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page