ZIP code · Brunswick · Georgia · United States
ZIP code 31521 — Brunswick
ZIP code 31521 serves Brunswick, Georgia.
- Postal code
- 31521Single source Value from one source, not cross-checked.
- City
- Brunswick
- County
- Glynn
- State
- Georgia
- Country
- United States
- Coordinates
- 31.1500, -81.4915 — 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/New_York (UTC−5 / UTC−4 DST)
- Area code
- 912Telephone 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 31521 with another ZIP · ZIPs within 25 miles · distance from 31521
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Jan (avg low 44°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 61 | 64 | 70 | 76 | 83 | 88 | 90 | 89 | 84 | 78 | 69 | 63 |
| Avg low °F | 44 | 47 | 53 | 59 | 67 | 73 | 75 | 75 | 72 | 63 | 53 | 47 |
| Precip in | 3.5 | 3.1 | 3.8 | 3.1 | 3.0 | 6.3 | 4.9 | 7.0 | 6.3 | 4.6 | 2.0 | 2.6 |
NOAA 1991–2020 climate normals from the nearest station: BRUNSWICK (1.4 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