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.

Reviewed by PlainZIP Editorial Team, ZIP Code Data Editors · June 13, 2026

4,205
162/sq mi: $156,979
Median income: $1,581,300
Median home value: 71.6%
Bachelor's or higher

The verdict

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 is classified by USPS as a standard delivery area and covers roughly 25.9 square miles in Isle Of Palms, Charleston County, South Carolina. The area is home to 4,205 residents, producing a population density of 162 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 29451 against South Carolina and the nation.

On the economic side, the median household income for ZIP 29451 sits at $156,979 (146% above the South Carolina average), while per-capita income is $128,199. The poverty rate stands at 2.5% and the unemployment rate at 1.3%. On housing, the median home value is $1,581,300 (599% above the state average) with median rent at $2,893 per month, and 93.5% of occupied units are owner-occupied, a direct signal of whether 29451 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 71.6% of adults hold a bachelor's degree or higher, the median age is 54.6, and the average commute is 28 minutes. We also surface 4 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Charleston County, so you can benchmark 29451 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Top industries in ZIP 29451

Real estate and rental and leasing

36
Professional, scientific, and technical services

25
Accommodation and food services

23
Other services (except public administration)

15
Retail trade

13

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 + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 29451, Isle Of Palms, SC · 2023 Accessed 2026-06-13 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + 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

Neighborhood Scorecard

Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.

View Scorecard →

Who lives in ZIP 29451?

54.6

Median Age

50.1%

Male

49.9%

Female

5.3%

Foreign-Born

White 99.1%

African American 0.0%

Asian 0.0%

American Indian or Alaska Native 0.0%

Native Hawaiian or Pacific Islander 0.0%

Two or More Ethnicities 0.8%

Hispanic or Latino 0.3%

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

$128,199

Per Capita Income

2.5%

Poverty Rate

1.3%

Unemployment Rate

27.9 min

Mean Commute Time

How ZIP 29451 ranks nationally

Household income vs. every US ZIP code

Median household income — the full national distribution, with this ZIP marked

$156,979 Top 3% higher than 97% of 30,318 US ZIPs

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 79.2%

Bachelor's Degree or Higher 71.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

4,674

Total Housing Units

2,043

Occupied Units

2,631

Vacant Units

2.14

Avg Household Size

Occupancy Type

Owner 93.5%

Renter 6.5%

$1,581,300

Median Home Value

+599% vs state

$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

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 →

29464

43,649
29466

28,725
29492

10,262
29451

4,205
29482

1,791

What this shows Among its immediate neighbors, ZIP 29451 ranks #4 by population — useful context the national average alone can't give.

29482

$192,813
29451

$156,979
29466

$133,357
29464

$111,907
29492

$110,509

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.

ZIP Code	City	Population	Distance
29466	Mount Pleasant, SC	28,725	4.5 mi
29464	Mount Pleasant, SC	43,649	6.0 mi
29482	Sullivans Island, SC	1,791	6.0 mi
29492	Charleston, SC	10,262	9.8 mi

More ZIP Codes in Charleston County

Charleston County Isle Of Palms, SC South Carolina

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.