ZIP code · Napoleonville · Louisiana · United States

ZIP code 70390 — Napoleonville

ZIP code 70390 serves Napoleonville, Louisiana.

Postal code
70390
Single source Value from one source, not cross-checked.
City
Napoleonville
County
Assumption FIPS 22007
State
Louisiana
Country
United States
Coordinates
29.9288, -91.0266 — precision precise (locality)
View on OpenStreetMap
Population
7,397 (ZCTA, ACS 5-year)
Population density
50 / sq mi
Land area
147.8 sq mi (382.7 km²) (ZCTA, ACS 5-year)
Median household income
$56,353
Per-capita income
$27,198
Median age
36.2
Households
2,837
Housing units
3,272
Median home value
$152,000
Median gross rent
$823 / month
Congressional district
LA-2 (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
985
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.

Climate — monthly normals

Warmest month Aug (avg high 91°F), coldest Jan (avg low 42°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F626672788589919188807164
Avg low °F424551576572747369594944
Precip in5.84.14.04.95.67.06.56.45.44.74.24.9

NOAA 1991–2020 climate normals from the nearest station: DONALDSONVILLE 4 SW (9.9 mi) · NOAA NCEI

Places in ZIP 70390

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