ZIP code · Buffalo · South Carolina · United States
ZIP code 29321 — Buffalo
ZIP code 29321 serves Buffalo, South Carolina.
- Postal code
- 29321Single source Value from one source, not cross-checked.
- City
- Buffalo
- County
- Union FIPS 45087
- State
- South Carolina
- Country
- United States
- Coordinates
- 34.7247, -81.6826 — precision precise (locality)
View on OpenStreetMap - Population
- 3,147 (ZCTA, ACS 5-year)
- Population density
- 80 / sq mi
- Land area
- 39.3 sq mi (101.8 km²) (ZCTA, ACS 5-year)
- Median household income
- $32,907
- Per-capita income
- $18,091
- Median age
- 34.4
- Households
- 1,159
- Housing units
- 1,318
- Median home value
- $61,900
- Median gross rent
- $668 / month
- Congressional district
- SC-5 (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °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
- 864 (from the nearest rate centre)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.
Tools: compare 29321 with another ZIP · ZIPs within 25 miles · distance from 29321
Map of ZIP code 29321
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Jan (avg low 29°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 53 | 57 | 65 | 74 | 81 | 87 | 90 | 89 | 83 | 74 | 63 | 55 |
| Avg low °F | 29 | 32 | 38 | 47 | 55 | 65 | 68 | 67 | 61 | 48 | 37 | 32 |
| Precip in | 4.2 | 3.6 | 4.3 | 3.8 | 3.1 | 4.1 | 3.7 | 4.0 | 3.4 | 3.3 | 3.6 | 4.3 |
NOAA 1991–2020 climate normals from the nearest station: UNION 8 S (8.3 mi) · NOAA NCEI
Places in ZIP 29321
- 2 restaurants & cafés
- 2 parks
- 1 post offices
- 10 places of worship
- 1 gas stations
- 1 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