ZIP code · Isle Of Palms · South Carolina · United States
ZIP code 29451 — Isle Of Palms
ZIP code 29451 serves Isle Of Palms, South Carolina.
- Postal code
- 29451Single source Value from one source, not cross-checked.
- City
- Isle Of Palms
- County
- Charleston FIPS 45019
- State
- South Carolina
- Country
- United States
- Coordinates
- 32.7943, -79.7729 — precision precise (locality)
View on OpenStreetMap - Population
- 4,382 (ZCTA, ACS 5-year)
- Population density
- 481 / sq mi
- Land area
- 9.1 sq mi (23.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $148,285
- Per-capita income
- $122,063
- Median age
- 54.3
- Households
- 2,009
- Housing units
- 4,581
- Median home value
- $1,197,800
- Median gross rent
- $3,236 / month
- Congressional district
- SC-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/New_York (UTC−5 / UTC−4 DST)
Tools: compare 29451 with another ZIP · ZIPs within 25 miles · distance from 29451
Map of ZIP code 29451
Climate — monthly normals
Warmest month Jul (avg high 91°F), coldest Jan (avg low 37°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 59 | 61 | 67 | 75 | 82 | 88 | 91 | 90 | 86 | 78 | 69 | 62 |
| Avg low °F | 37 | 39 | 45 | 54 | 63 | 70 | 73 | 72 | 68 | 58 | 47 | 40 |
| Precip in | 3.8 | 3.3 | 3.5 | 3.6 | 3.3 | 5.4 | 6.0 | 6.7 | 5.5 | 3.9 | 3.0 | 3.6 |
NOAA 1991–2020 climate normals from the nearest station: SULLIVANS IS (5.4 mi) · NOAA NCEI
Places in ZIP 29451
- 1 supermarkets
- 17 restaurants & cafés
- 3 bars & pubs
- 1 parks
- 2 playgrounds
- 1 post offices
- 3 places of worship
- 1 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