ZIP code · Seneca · South Carolina · United States
ZIP code 29678 — Seneca
ZIP code 29678 serves Seneca, South Carolina.
- Postal code
- 29678Single source Value from one source, not cross-checked.
- City
- Seneca
- County
- Oconee FIPS 45073
- State
- South Carolina
- Country
- United States
- Coordinates
- 34.6828, -82.9362 — precision precise (locality)
View on OpenStreetMap - Population
- 23,507 (ZCTA, ACS 5-year)
- Population density
- 295 / sq mi
- Land area
- 79.8 sq mi (206.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $49,699
- Per-capita income
- $30,686
- Median age
- 38.6
- Households
- 10,311
- Housing units
- 11,742
- Median home value
- $205,600
- Median gross rent
- $943 / month
- Congressional district
- SC-3 (119th Congress)
- USDA hardiness zone
- 8b (15 to 20 °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)
Tools: compare 29678 with another ZIP · ZIPs within 25 miles · distance from 29678
Map of ZIP code 29678
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Jan (avg low 34°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 52 | 56 | 64 | 72 | 79 | 85 | 89 | 87 | 82 | 72 | 62 | 54 |
| Avg low °F | 34 | 36 | 43 | 50 | 59 | 66 | 70 | 69 | 64 | 52 | 42 | 36 |
| Precip in | 4.5 | 4.2 | 4.7 | 3.8 | 3.5 | 4.4 | 3.6 | 4.9 | 3.7 | 3.6 | 3.6 | 4.5 |
NOAA 1991–2020 climate normals from the nearest station: CLEMSON OCONEE CO AP (2.9 mi) · NOAA NCEI
Places in ZIP 29678
- 5 schools
- 1 colleges & universities
- 1 hospitals & clinics
- 6 doctors & dentists
- 4 pharmacies
- 4 supermarkets
- 35 restaurants & cafés
- 5 bars & pubs
- 13 parks
- 10 playgrounds
- 4 gyms & sports centres
- 1 libraries
- 2 post offices
- 39 places of worship
- 8 banks
- 8 gas stations
- 1 EV charging 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