ZIP code · Hammond · Louisiana · United States
ZIP code 70401 — Hammond
ZIP code 70401 serves Hammond, Louisiana.
- Postal code
- 70401Single source Value from one source, not cross-checked.
- City
- Hammond
- County
- Tangipahoa FIPS 22105
- State
- Louisiana
- Country
- United States
- Coordinates
- 30.5191, -90.4879 — precision precise (locality)
View on OpenStreetMap - Population
- 21,901 (ZCTA, ACS 5-year)
- Population density
- 631 / sq mi
- Land area
- 34.7 sq mi (89.9 km²) (ZCTA, ACS 5-year)
- Median household income
- $50,995
- Per-capita income
- $28,416
- Median age
- 29.1
- Households
- 8,454
- Housing units
- 10,321
- Median home value
- $226,800
- Median gross rent
- $977 / month
- Congressional districts
- LA-5 (also LA-1) (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
- 985Telephone 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 70401 with another ZIP · ZIPs within 25 miles · distance from 70401
Map of ZIP code 70401
Climate — monthly normals
Warmest month Aug (avg high 92°F), coldest Jan (avg low 38°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 65 | 72 | 78 | 85 | 90 | 92 | 92 | 88 | 81 | 70 | 64 |
| Avg low °F | 38 | 42 | 49 | 55 | 63 | 69 | 72 | 71 | 67 | 56 | 46 | 41 |
| Precip in | 5.8 | 4.6 | 5.3 | 5.6 | 5.4 | 6.7 | 6.8 | 5.6 | 4.4 | 4.1 | 4.2 | 5.9 |
NOAA 1991–2020 climate normals from the nearest station: HAMMOND 5 E (6.7 mi) · NOAA NCEI
Places in ZIP 70401
- 14 schools
- 3 colleges & universities
- 2 hospitals & clinics
- 1 doctors & dentists
- 3 pharmacies
- 3 supermarkets
- 44 restaurants & cafés
- 7 bars & pubs
- 6 parks
- 1 playgrounds
- 3 gyms & sports centres
- 1 post offices
- 22 places of worship
- 2 banks
- 6 gas stations
- 3 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