Isle Of Palms, SC · standard
ZIP Code 29451
Charleston County, South Carolina - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 4,205
- 162/sq mi High-density area
- $156,979
- Median income Above-median income area
- $1,581,300
- Median home value Above-median home value
- 71.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Isle Of Palms pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 3%
- household income, US ZIPs
- Top 1%
- home value, US ZIPs
- 162
- people per sq mi
- 94%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 29451 against every reporting US ZIP.
ZIP code 29451 covers 25.9 square miles in Isle Of Palms, Charleston County, South Carolina (a standard USPS delivery area), with a modest 4,205 residents on file, a density of 162 people per square mile, in the New York time zone.
ZIP 29451 skews affluent, with a median household income of $156,979 (146% above the average South Carolina ZIP), while per-capita income is $128,199. Both reported hardship measures are comparatively low in absolute terms: poverty is 2.5% and unemployment is 1.3%. Housing is both higher-cost and owner-heavy: median home value is $1,581,300 (599% above the average South Carolina ZIP), while 93.5% of occupied homes are owner-occupied and median rent is $2,893.
This is a highly-educated ZIP: 71.6% of adults hold a bachelor's degree or higher, the median age is 54.6, and the average commute is 28 minutes. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Charleston County, so 29451 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 29451
Top 5 sectors by establishment count in Isle Of Palms, SC
Which industries have the most business establishments in ZIP 29451.
- Real estate and rental and leasing
Real estate and rental and leasing
36 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
25 establishments
- Accommodation and food services
Accommodation and food services
23 establishments
- Other services (except public administration)
Other services (except public administration)
15 establishments
- Retail trade 13
Retail trade
13 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 29451, Isle Of Palms, SC · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
4,205
Population
25.9
Area (sq mi)
162
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 29451?
54.6
Median Age
50.1%
Male
49.9%
Female
5.3%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$156,979
Median Household Income
+146% vs state ZIP avg
$128,199
Per Capita Income
2.5%
Poverty Rate
1.3%
Unemployment Rate
27.9 min
Mean Commute Time
How ZIP 29451 ranks among South Carolina ZIPs
Isle Of Palms, SC household income vs. every South Carolina ZIP code
Median household income among 384 reporting South Carolina ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$156,979 Top 1% higher than 99% of 384 South Carolina ZIPs
Each bar is a $20K-wide band; taller bars hold more South Carolina ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
4,674housing units
4,674
Total Housing Units
2,043
Occupied Units
2,631
Vacant Units
2.14
Avg Household Size
Occupancy Type
$1,581,300
Median Home Value
+599% vs state ZIP avg
$2,893
Median Rent
1986
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+21.1%
YoY Change (2022)
307
HPI Index (2000 = 100)
+207%
Total Change Since 2000
Home values in ZIP 29451 have increased 21.1% over the past year (2022). Since 2000, this ZIP has seen +207% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2018 | +3.5% | 193 |
| 2019 | +6.9% | 206 |
| 2020 | +3.1% | 213 |
| 2021 | +19.5% | 254 |
| 2022 | +21.1% | 307 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2022. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 163 business establishments in ZIP 29451, employing approximately 1,777 people with a combined annual payroll of $89,463,000.
163
Businesses
1,777
Employees
$89.5M
Annual Payroll
12
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Real estate and rental and leasing | 36 | 22.1% |
| Professional, scientific, and technical services | 25 | 15.3% |
| Accommodation and food services | 23 | 14.1% |
| Other services (except public administration) | 15 | 9.2% |
| Retail trade | 13 | 8.0% |
| Construction | 11 | 6.8% |
| Health care and social assistance | 10 | 6.1% |
| Finance and insurance | 7 | 4.3% |
| Administrative and support and waste management and remediation services | 7 | 4.3% |
| Wholesale trade | 4 | 2.5% |
| Arts, entertainment, and recreation | 4 | 2.5% |
| Transportation and warehousing | 3 | 1.8% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 29451 vs 29466 →
ZIP 29451 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 29464
Mount Pleasant (29464)
43,649 residents
- 29466
Mount Pleasant (29466)
28,725 residents
- 29492 10,262
Charleston (29492)
10,262 residents
- 29451 4,205
Isle Of Palms (29451)
4,205 residents
- 29482 1,791
Sullivans Island (29482)
1,791 residents
What this shows Among its immediate neighbors, ZIP 29451 ranks #4 by population - useful context the national average alone can't give.
ZIP 29451 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 29482
Sullivans Island (29482)
$192,813 median income
- 29451
Isle Of Palms (29451)
$156,979 median income
- 29466
Mount Pleasant (29466)
$133,357 median income
- 29464
Mount Pleasant (29464)
$111,907 median income
- 29492
Charleston (29492)
$110,509 median income
What this shows By household income, ZIP 29451 ranks #2 of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 29451, both outside SC so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (4,205 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Charleston County
Related Areas
Frequently Asked Questions
What county is ZIP code 29451 in?
ZIP code 29451 (Isle Of Palms) is located in Charleston County, South Carolina. Charleston County contains multiple ZIP codes, see the full list at /counties/charleston-sc.
What is the population of ZIP code 29451?
ZIP code 29451 in Isle Of Palms, SC has a population of 4,205 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 29451?
The median household income in ZIP 29451 is $156,979, which is 106% above the national average of $76,288.
What is the average home value in ZIP 29451?
The median home value in ZIP 29451 is $1,581,300, which is 468% above the national average of $278,155.
What is the demographic makeup of ZIP 29451?
The largest racial group in ZIP 29451 is White at 99.1%. Hispanic or Latino residents make up 0.3% of the population.
How many businesses are in ZIP code 29451?
ZIP code 29451 has 163 business establishments employing approximately 1,777 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 29451?
The top industries by establishment count in ZIP 29451 are: Real estate and rental and leasing (36), Professional, scientific, and technical services (25), Accommodation and food services (23). There are 12 industry sectors represented in total.
How have home values changed in ZIP code 29451?
According to the FHFA House Price Index, home values in ZIP 29451 increased by 21.1% in 2022. Since 2000, home values in this ZIP have appreciated by approximately 207%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 29451?
In ZIP code 29451, 79.2% of residents aged 25+ have a high school diploma or higher, and 71.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 29451?
The mean commute time for workers in ZIP code 29451 is 27.9 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 29451?
In ZIP code 29451, approximately 93.5% of occupied housing units are owner-occupied and 6.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 29451?
The poverty rate in ZIP code 29451 is 2.5% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 29451's numbers, next.
- See how ZIP 29451 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Isle Of Palms, SC ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.