ZIP code · Baton Rouge · Louisiana · United States
ZIP code 70821 — Baton Rouge
ZIP code 70821 serves Baton Rouge, Louisiana.
- Postal code
- 70821Single source Value from one source, not cross-checked.
- City
- Baton Rouge
- County
- East Baton Rouge Parish
- State
- Louisiana
- Country
- United States
- Coordinates
- 30.4613, -91.0447 — precision precise (locality)
View on OpenStreetMap - 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
- 225Telephone 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 70821 with another ZIP · ZIPs within 25 miles · distance from 70821
Climate — monthly normals
Warmest month Aug (avg high 92°F), coldest Jan (avg low 42°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 62 | 67 | 73 | 79 | 86 | 91 | 92 | 92 | 89 | 81 | 71 | 64 |
| Avg low °F | 42 | 45 | 51 | 57 | 65 | 72 | 74 | 73 | 69 | 58 | 48 | 43 |
| Precip in | 6.4 | 4.4 | 4.5 | 5.1 | 5.2 | 6.5 | 5.1 | 6.4 | 4.4 | 4.8 | 3.9 | 5.3 |
NOAA 1991–2020 climate normals from the nearest station: BATON ROUGE RYAN AP (8.0 mi) · NOAA NCEI
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 · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page