Residential delivery area · South Carolina
ZIP Code 29451: Isle Of Palms, SC
ZIP code 29451 uses the postal name Isle Of Palms, South Carolina and lies entirely in Charleston County (Census 2020 ZIP-county file). About 4,400 people live there (Census Bureau, ACS 2020-2024). Median household income is $156,979 (Census Bureau, ACS 2020-2024). By Census place, 49% of its land lies in Isle of Palms; 51% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2022
- ZBP2023
- IRS2022
- Town
- Isle Of Palms · its only residential ZIP
- County
- Charleston County
- Census places
- Isle of Palms
- Neighborhood
- Forest Trail GeoNames
- Metro area
- Charleston-North Charleston, SC
- House district
- SC-1 119th Congress
- State
- South Carolina
- Time zone
- Eastern
- Land area
- 9.1 sq mi · 478 people per sq mi
Where is ZIP code 29451?
29451 centers on 32.828°, -79.750° and covers 9.1 square miles of land plus 3.4 of water. It borders 3 ZIP codes: 29466, 29482, 29464.
The map draws ZIP code areas only. For the streets inside 29451, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 29451 compare with the rest of Charleston County?
| Measure | 29451 | In Charleston County | In SC |
|---|---|---|---|
| People (ACS 2020-2024) | 4,362 | 18th of 29 | 233rd of 424 |
| Median household income | $157k | not ranked | not ranked |
| Median home value | $1.58M | 2nd of 21 | 2nd of 260 |
29451's median household income is not ranked: its 90% margin of error (±$44,841) is more than a quarter of the figure ($156,979). Rankings use ZIP codes of 1,000 or more people living in households, with margins at most 25% of the figure.
It is denser than 72% of U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 29451?
The 2020 Census counted 4,417 people in 29451; the ACS, which samples households over 2020-2024, estimates 4,362. Between the 2010 and 2020 censuses its population grew 5.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,362
- 2020 Census count
- 4,417+5.0% since 2010 (4,205)
- Households
- 2,043
- Median age
- 54.6
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 29451?
Of the 4,362 people the ACS estimates in 29451, 13.3% are under 18 and 34.7% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (98.9%).
- Under 1813.3%
- 18 to 6452.0%
- 65 and older34.7%
- White, not Hispanic98.9%
- Other or two or more0.8%
- Hispanic or Latino0.3%
- Asian, not Hispanic0.0%
- Black, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 29451 earn?
Median household income is $156,979 (ACS 2020-2024). It is not measurably different from 2015-2019 ($148,706 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $156,979±$44,841
- Income per person
- $128,199
- Below the poverty line
- 2.5%
- Unemployed (of the labor force)
- 1.3%
- Adults 25+ with a bachelor's degree
- 71.6%
- Adjusted gross income per tax return, 2022
- $305,6202,390 returns; wages 35% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 29451?
- Median home value (owners' estimate)
- $1,581,300
- Median gross rent
- $2,893
- Homes owned by their occupants
- 93.5%
- Housing units
- 4,674
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 29451?
163 business establishments had a location in this ZIP code in 2023, 13 more than in 2018; the most are in real estate and rental and leasing (ZIP Code Business Patterns).
- Real estate and rental and leasing36
- Professional, scientific, and technical services25
- Accommodation and food services23
- Other services (except public administration)15
- Retail trade13
- Construction11
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 29451?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 29466 | Mount Pleasant | 44,942 | $133k | 3.8 mi |
| 29482 | Sullivans Island | 2,087 | $193k | 6.1 mi |
| 29464 | Mount Pleasant | 53,045 | $112k | 6.2 mi |
| 29492 | Charleston | 20,436 | $111k | 9.4 mi (near) |
| 29401 | Charleston | 9,339 | $100k | 11.1 mi (near) |
| 29424 | Charleston | 1,243 | – | 11.3 mi (near) |
| 29403 | Charleston | 22,533 | $67k | 11.5 mi (near) |
| 29429 | Awendaw | 4,479 | $112k | 11.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.