ZIP code · Grand Chenier · Louisiana · United States
ZIP code 70643 — Grand Chenier
ZIP code 70643 serves Grand Chenier, Louisiana.
- Postal code
- 70643Single source Value from one source, not cross-checked.
- City
- Grand Chenier
- County
- Cameron FIPS 22023
- State
- Louisiana
- Country
- United States
- Coordinates
- 29.7644, -92.9261 — precision precise (locality)
View on OpenStreetMap - Population
- 177 (ZCTA, ACS 5-year)
- Population density
- 1 / sq mi
- Land area
- 261.2 sq mi (676.4 km²) (ZCTA, ACS 5-year)
- Per-capita income
- $23,740
- Median age
- 61.5
- Households
- 104
- Housing units
- 148
- Congressional district
- LA-3 (119th Congress)
- USDA hardiness zone
- 9b (25 to 30 °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
- 337Telephone 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 70643 with another ZIP · ZIPs within 25 miles · distance from 70643
Map of ZIP code 70643
Climate — monthly normals
Warmest month Aug (avg high 91°F), coldest Jan (avg low 45°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 65 | 71 | 77 | 83 | 88 | 90 | 91 | 88 | 81 | 72 | 64 |
| Avg low °F | 45 | 48 | 55 | 61 | 69 | 75 | 77 | 76 | 72 | 62 | 53 | 47 |
| Precip in | 5.7 | 3.3 | 3.4 | 4.6 | 4.5 | 5.9 | 7.0 | 7.0 | 6.0 | 3.7 | 4.3 | 4.0 |
NOAA 1991–2020 climate normals from the nearest station: ROCKEFELLER WL REFUGE (7.0 mi) · NOAA NCEI
Places in ZIP 70643
- 2 schools
- 2 parks
- 1 libraries
- 1 places of worship
- 2 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