Wadmalaw Island, SC ZIP Code, Map and Demographics

29487 is the only ZIP Code for Wadmalaw Island, SC

Ensure faster delivery with the ZIP+4: The ZIP+4 is an extension of the five-digit ZIP Code used by the USPS. The four extra digits are added after a hyphen to the standard five-digit ZIP code. The ZIP+4 code identifies a specific geographic segment within the five-digit delivery area, such as a city block, a group of apartments, or a post office box. The ZIP+4 code can also indicate the side of the street on which a building is located.

Using the full ZIP+4 ensures the fastest, most accurate mailing possible. The ZIP+4 code enables mail to arrive faster, as it reduces the need for human interaction in a mail center. by entering the address.

Address

City

State

Find ZIP+4 of Address |

Data Last Updated: June 1, 2026

Print Map | Wadmalaw Island, SC ZIP Code Map |

ZIP Code:	29487 (Standard)
County:	Charleston County, SC
Area Codes:	843,854
Time Zone:	Eastern (GMT -05:00)
Local Time:	12:00:00 AM
Population:	2,848 (ZIP Codes) [More Demographics]
Statistical Area:	Charleston-North Charleston, SC [Learn More]
Coordinates:	32.6573, -80.1848
Land Area:	41.90 sq miles (ZIP Code)
Quick Link:	https://www.zip-codes.com/city/sc-wadmalaw-island.asp

Download this data |

Try ZIP Code API Free |

Wadmalaw Island, SC has 1 ZIP Code

ZIP Code	Type	PopulationPop	% of Population% of Pop	Alias Names
29487	Standard	2,848	100.00%	Wadmalaw Is

Interactive charts load automatically as you scroll. Hover for data, click to explore trends, and use the menu to export.

Population & Demographics

Data labeled as "All ZIP Codes" is a total (or average) for every ZIP Code with Wadmalaw Island, SC assigned by the USPS. The U.S. Postal Service provides a name (and aliases) for every ZIP Code which can include cities, towns, villages, and other incorporated names.

There is currently no matching U.S. Census Place for this geographic area. Many rural areas may have such low population density that they will not be part of any U.S. Census Place.

Total Population:	2,848
Total Households:	1,180
Total Housing Units:	1,386
Average Household Size:	2.41
Average Family Size:	3.33

All ZIP Codes assigned this City name by the USPS.

Population Over Time (with 2010 & 2020 Census Benchmarks)

Line chart of All ZIPs in Wadmalaw Island, SC population estimates from 2011-2024, with markers for the 2010 and 2020 Decennial Census counts to show growth or decline over time. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2010	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Census ACS Population Estimate	--	2,642	2,883	2,924	2,863	2,993	3,106	3,133	2,999	2,910	2,693	2,504	2,302	2,702
Decennial Census	2,725	--	--	--	--	--	--	--	--	--	2,848	--	--	--

Source: U.S. Census 2011-2023 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)

Median Age: 52.5

Male Median Age: 51.2

Female Median Age: 53.8

Line Chart showing the population by Age Group and Gender of all ZIPs in Wadmalaw Island, South Carolina. One line shows the Total population in that age group, another line shows the Male population for that age group, and the last line shows the Female population for the given age group. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	< 5	5-9	10-14	15-19	20-24	25-29	30-34	35-39	40-44	45-49	50-54	55-59	60-64	65-69	70-74	75-79	80-84	85+
Male	58	63	54	68	67	55	61	71	91	89	109	117	141	109	117	81	39	21
Female	47	56	70	78	61	54	74	70	68	75	101	106	171	125	117	79	46	39
Total	105	119	124	146	128	109	135	141	159	164	210	223	312	234	234	160	85	60

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Pie Chart & Table (ZIPs)Comparison Chart

Population by Race

Pie Chart showing Population by Race for all ZIPs in Wadmalaw Island, South Carolina. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

White:	1,429	50.73%
Black:	1,240	44.02%
Hispanic:*	82	2.91%
Asian:	10	0.35%
American Indian:	15	0.53%
Hawaiian:	0	0%
Other:	41	1.46%
Total:	2,817	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Pie Chart & Table (ZIPs)Comparison Chart

Gender Breakdown

Pie chart showing Male vs Demale share of the population. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Gender	Count	Percentage	Median Age
Males:	1,411	49.54%	51.2 years
Females:	1,437	50.46%	53.8 years
Total:	2,848	100%	52.5 years

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Pie Chart & Table (ZIPs)

Nativity & Citizenship

Pie chart showing Nativity/Citizenship for all ZIPs in Wadmalaw Island, SC. Categories include native residents (born in the United States, Puerto Rico, U.S. Island Areas, or abroad to American parents) and foreign-born residents. A table below lists counts and percentages. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Native, born in the United States:	2,491	92.19%
Native, born in PR, Island Areas, or abroad:	93	3.44%
Foreign born, naturalized U.S. citizen:	77	2.85%
Foreign born, not a U.S. citizen:	41	4.37%
Total Population:	2,702	100%
Total Native Population:	2,584	95.63%
Total Foreign-born Population:	118	4.37%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Line Chart showing Median Income Estimates from 2011 until 2024 of Median Household Income, Median Family Income, Median Nonfamily Income, Median Male Income, and Median Female Income for all ZIPs in Wadmalaw Island, South Carolina. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Income Type	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Household Income	$50,263	$48,533	$47,068	$54,808	$53,603	$56,833	$45,583	$56,786	$56,250	$70,000	$69,706	$74,966	$93,480
Median Family Income	$66,066	$77,750	$70,250	$66,563	$65,333	$66,283	$61,875	$68,286	$76,184	$88,676	$97,361	$109,821	$115,750
Median NonFamily Income	$27,102	$27,458	$25,603	$26,944	$23,482	$18,661	$19,286	$0	$0	$0	$0	$0	$43,333
Median Male Income	$49,839	$52,337	$57,321	$60,802	$0	$41,055	$41,971	$48,125	$44,967	$51,425	$55,417	$58,051	$58,250
Median Female Income	$35,054	$38,616	$35,658	$35,489	$0	$35,038	$35,320	$35,547	$32,122	$50,602	$46,824	$52,197	$53,750

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income

Bar Chart showing Average Household Income for all ZIPs in Wadmalaw Island, SC, the U.S. Census Place, Charleston County, the state of South Carolina, and the United States National Average. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2019-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Pie Chart & Table (ZIPs)Comparison Chart

Employment Status

Employment status for all ZIPs in Wadmalaw Island, SC: employed, unemployed, and not in the labor force. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Employed:	1,330	59.48%
Unemployed:	26	1.16%
Not In Labor Force:	880	39.36%
Total:	2,236	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Pie Chart & Table (ZIPs)

Employment by Occupation (Civilian Employed Population, 16 and Over)

Donut Chart showing the distribution of employed civilians aged 16 and over by occupation category: management, service, sales and office, natural resources and construction, and production and transportation. A table with the same data and percentages is provided as well.Load Chart Manually (if needed)

Management, business, science, and arts:	625	46.99%
Service:	252	18.95%
Sales and Office:	215	16.17%
Natural resources, construction, and maintenance:	78	5.86%
Production, transportation, and material moving:	160	12.03%
Total Civilian Employed Population:	1,330	100%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability

Median Home Value (Comparison)

Bar Chart showing median House Value for all ZIPs in Wadmalaw Island, South Carolina, the U.S. Census Place, Charleston County, South Carolina, and the United States National Average. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Median Home Value Over Time (2011-2024)

Line chart showing median home values for ZIP across years 2011-2024 using ACS 5-year estimates. The chart displays the typical dollar value of owner-occupied housing units. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Home Value	$272,000	$276,500	$270,600	$352,000	$309,300	$318,800	$293,800	$288,000	$230,300	$325,900	$346,400	$328,100	$442,100

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Pie Chart & Table (ZIPs)

Gross Rent Paid

Pie Chart showing Gross Rent Paid by renters for all ZIPs in Wadmalaw Island, SC. A table also provides the same information. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Less than $500:	0	0.00%
$500 to $999:	4	4.00%
$1,000 to $1,499:	33	33.00%
$1,500 to $1,999:	0	0.00%
$2,000 to $2,499:	5	5.00%
$2,500 to $2,999:	0	0.00%
$3,000 or more:	8	8.00%
No Rent:	50	50.00%
Total:	100	100%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time (2011-2024)

Line chart displaying median gross rent for ZIP over the years 2011-2024 using ACS 5-year estimates. The chart represents typical monthly housing costs for renter households. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
Median Rent	$807	$863	$867	$856	$781	$765	$772	$1,015	$1,025	$1,164	$1,147	$1,404	$1,409

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Pie Chart & Table (ZIPs)

Housing Occupancy

Pie chart showing housing occupancy for in Wadmalaw Island, SC. Categories include owner-occupied units with a mortgage, owner-occupied units free and clear, and renter-occupied units. A table below lists counts and percentages. Vacant housing units are shown separately in the Vacancy table. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Owner Occupied (with mortgage):	496	46.66%
Owner Occupied (free and clear, no mortgage):	467	43.93%
Renter Occupied:	100	9.41%
Total Occupied Housing Units:	1,063	100%

Occupied Housing Units:	1,063	83.97%
Vacant Housing Units (not graphed):	203	16.03%
Total Housing Units:	1,266	100%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community

Pie Chart & Table (ZIPs)

Educational Attainment of Adults (25 and Older)

Pie chart of educational attainment for adults (25+) for all ZIPs in Wadmalaw Island, SC, including each level from less than 9th grade to graduate/professional. Summary rows show high school or higher and bachelor's or higher. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Less than 9th grade:	58	2.74%
9th to 12th grade, no diploma:	105	4.96%
High school graduate (includes equivalency):	516	24.37%
Some college, no degree:	412	19.46%
Associate's degree:	162	7.65%
Bachelor's degree:	582	27.49%
Graduate or professional degree:	282	13.32%
Total:	2,117	100%
High school graduate or higher:	1,954	92.30%
Bachelor's degree or higher:	864	40.81%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Pie Chart & Table (ZIPs)Comparison Chart

Health Insurance Coverage by Type (Private, Public, Uninsured)

Pie chart illustrating health insurance coverage by type for Wadmalaw Island, SC. Categories include private insurance, public coverage such as Medicare and Medicaid, and individuals with no health insurance. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Private Insurance:	1,954	60.85%
Public Insurance:	1,091	33.98%
No Insurance:	166	5.17%
Total:	3,211	100%
Has Health Insurance:	3,045	94.83%

All ZIP Codes assigned this City name by the USPS.

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)

Line chart displaying the share of families and people in All ZIPs of Wadmalaw Island SC whose income falls below the federal poverty threshold, using ACS 5-year estimates from 2011 through 2024. The chart shows year-to-year changes in the percentage of people in poverty. Chart loads automatically and replaces this content. Load Chart Manually (if needed)

Group	2011	2102	2013	2014	2015	2016	2017	2018	2019	2020	2021	2022	2023
% of People in Poverty	7.1%	13.6%	18.0%	16.9%	20.0%	22.9%	22.2%	18.6%	11.1%	10.3%	6.3%	5.8%	3.4%

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.

Pie Chart & Table (ZIPs)

School Enrollment by Education Level (Ages 3 and Older)

Pie Chart showing enrollment of residents ages 3 and older in Nursery School or Preschool, Kindergarten, Elementary (grades 1-8), High School (grades 9-12), and College or Graduate School for all ZIPS in Wadmalaw Island, SC.Load Chart Manually (if needed)

Nursery School, Preschool:	0	0.00%
Kindergarten:	24	3.70%
Elementary school (grades 1-8):	372	57.41%
High school (grades 9-12):	141	21.76%
College or graduate school:	111	17.13%
Total:	648	100%
Early Childhood:	24	3.70%
K-12 (Primary & Secondary School):	537	82.87%

Source: U.S. Census 2019-2023 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics

Wadmalaw Island supports both business and residential activity. According to the Business Census (2024), there are 44 business establishments, employing about 206 people with an annual payroll of $11,127,000. USPS data shows 1,335 residential mailboxes and 32 business mailboxes, reflecting local delivery coverage.

# Residential Mailboxes:	1,335Source: USPS
# Business Mailboxes:	32Source: USPS
Total Delivery Receptacles:	19,159Source: USPS
Single Family Delivery Units:	1,335Source: USPS
Multi Family Delivery Units:	0Source: USPS

# of Businesses:	44Source: CBP
1st Quarter Payroll:	$2,602,000Source: CBP
Annual Payroll:	$11,127,000Source: CBP
# of Employees:	206Source: CBP

All ZIP Codes assigned this City name by the USPS.

Geography, Land Area, and Statistical Classifications

Wadmalaw Island, SC is located in Charleston County, within the Charleston-North Charleston, SC Metropolitan Statistical Area (CBSA 16700) and South Carolina's 1st Congressional District. This Metro area has a population of 817,756 people, about 0.3% of whom live in Wadmalaw Island. ZIP Codes here cover 41.897 sq mi of land and a water area of 8.726 sq mi.

CBSA Name:	Charleston-North Charleston, SCSource: Census
CBSA Number:	16700Source: Census
CBSA Type:	MetroSource: Census
CBSA Division:	--Source: Census
CBSA Population:	817,756Source: Census
MSA:	Charleston-North Charleston, SC MSASource: Census
PMSA:	--Source: Census

Land Area:	41.897 sq miSource: Census
Water Area:	8.726 sq miSource: Census
Congressional District(s):	01Source: USPS
Intro Date:	< 2004-10Source: ZIP-Codes.com
Place FIPS Code:	--Source: Census
Place Name:	--Source: Census

Sum of all ZIP Codes assigned this City name by the USPS.

Adjacent & Nearby Cities from Wadmalaw Island, SC

Hollywood, SC~6.0 miles
Johns Island, SC~6.6 miles
Edisto Island, SC~9.5 miles
Ravenel, SC~12.1 miles
Charleston, SC~13.9 miles
Adams Run, SC~14.5 miles
North Charleston, SC~17.7 miles
Charleston AFB, SC~18.4 miles
Green Pond, SC~19.8 miles
Summerville, SC~20.1 miles
Sullivans Island, SC~21.4 miles
Hanahan, SC~22.3 miles
Mount Pleasant, SC~22.4 miles
Ladson, SC~23.3 miles
Goose Creek, SC~25.5 miles
Round O, SC~26.3 miles
Cottageville, SC~26.6 miles
Isle Of Palms, SC~27.2 miles
Saint Helena Island, SC~28.3 miles
Ridgeville, SC~28.4 miles

Sources & References

Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on June 1, 2026.

U.S. Postal Service [Last Updated: 6/1/2026], https://www.usps.com
ZIP-Codes.com Proprietary Data Enhancements [Updated: 6/1/2026], https://www.zip-codes.com
U.S. Census [Updated: Varies], https://www.census.gov
- U.S. Census Office of Management and Budget [Updated: As Released]
- U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
- U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
- U.S. Census Business Patterns [Annually] [Updated: Annually, As Released]
- U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
National Center for Education Statistics [Updated: 6/1/2026], https://nces.ed.gov

The ZIP Code, Map and Demographics of Wadmalaw Island, SC

29487 is the only ZIP Code for Wadmalaw Island, SC

Wadmalaw Island, SC has 1 ZIP Code

Population & Demographics

Population Over Time (with 2010 & 2020 Census Benchmarks)

Population by Age & Gender (Total, Male, Female)

Population by Race

Gender Breakdown

Nativity & Citizenship

Income & Employment

Median Income Over Time (Household, Family, Nonfamily, Male, Female)

Average Household Income

Employment Status

Employment by Occupation (Civilian Employed Population, 16 and Over)

Housing & Affordability

Median Home Value (Comparison)

Median Home Value Over Time (2011-2024)

Gross Rent Paid

Median Gross Rent Over Time (2011-2024)

Housing Occupancy

Education, Health & Community

Educational Attainment of Adults (25 and Older)

Health Insurance Coverage by Type (Private, Public, Uninsured)

Percentage of People in Poverty Over Time (2011-2024)

School Enrollment by Education Level (Ages 3 and Older)

Business & Employment Statistics

Geography, Land Area, and Statistical Classifications

Adjacent & Nearby Cities from Wadmalaw Island, SC

Sources & References