29487 ZIP Code — Wadmalaw Island, SC

Charleston County, South Carolina

ZIP code 29487 is located in Wadmalaw Island, South Carolina, within Charleston County. It covers approximately 41.90 square miles and serves a population of 2,302 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 843.

About ZIP code 29487

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $328,100. Owner-occupancy is high at 92%, well above the national average.

The gap between median ($74,966) and mean household income suggests income inequality — a small number of higher earners pull the average up. 42% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 44 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (17%) compared to national benchmarks.

Overall, ZIP code 29487 reflects a community defined by high homeownership and a significant Social Security-dependent population.

2,302

population

41.90

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

29487 ZIP code map

Cities in ZIP code 29487

Below are the cities the US Postal Service accepts for ZIP code 29487. Using any city not on this list may result in mail delivery delays.

City	Status
Wadmalaw Island	Acceptable
Wadmalaw Island	Preferred

Nearby ZIP codes

29455 Johns Island (6.3 mi) 29449 Hollywood (6.9 mi) 29438 Edisto Island (9.9 mi) 29470 Ravenel (12.7 mi) 29412 Charleston (13.8 mi) 29414 Charleston (14.1 mi) 29407 Charleston (14.6 mi) 29426 Adams Run (15.3 mi) 29401 Charleston (16 mi) 29425 Charleston (16.1 mi) 29409 Charleston (16.4 mi) 29403 Charleston (16.8 mi)

Demographics updated 05/2026

Population
Total population	2,302
Population density	55 / sq mi
State FIPS	45
County FIPS	019

Geography
Land area	41.90 sq mi
Water area	8.73 sq mi
Latitude	32.6510
Longitude	-80.1714
Timezone	Eastern (ET)
Area code	843

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.5%	37.6%	45.8%
$50k – $100k	18.5%	27.8%	30.5%
$100k – $200k	24.2%	23.2%	18.6%
Over $200k	14.8%	11.4%	5.1%

Demographics & statistics

2,302

Population

People per sq mi

55.3

Median age

$74,966

Median household income

$57,887

Per capita income

$328,100

Median home value

$1,404

Median monthly rent

91.7%

Home ownership

16.0%

Poverty rate

7.4%

Unemployment

1,181

Housing units

31.4%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

138

10–14

15–19

20–24

105

25–34

182

35–44

130

111

45–54

156

55–59

112

162

60–64

115

231

65–74

165

104

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	437	19.0%
18 and over	1,865	81.0%
65 and over	615	26.7%
Median age	55.3 years

Race & ethnicity

White 60.7%

Black or African American 32.5%

Two or more races 3.8%

Hispanic or Latino 2.2%

Other race 0.9%

Group	Count	%
White	1,428	60.7%
Black or African American	764	32.5%
Two or more races	89	3.8%
Hispanic or Latino	52	2.2%
Other race	21	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	42.5%	37.6%	45.8%
$50k – $100k	18.5%	27.8%	30.5%
$100k – $200k	24.2%	23.2%	18.6%
Over $200k	14.8%	11.4%	5.1%

Under $10k 11.5%

$10k–$15k 4.8%

$15k–$25k 5.2%

$25k–$35k 7.1%

$35k–$50k 9.9%

$50k–$75k 11.7%

$75k–$100k 10.6%

$100k–$150k 11.9%

$150k–$200k 8.0%

$200k+ 19.5%

Range	% of households
Under $10k	11.5%
$10k–$15k	4.8%
$15k–$25k	5.2%
$25k–$35k	7.1%
$35k–$50k	9.9%
$50k–$75k	11.7%
$75k–$100k	10.6%
$100k–$150k	11.9%
$150k–$200k	8.0%
$200k+	19.5%
Median income	$74,966

Housing

Home values

Under $50k 4.7%

$50k–$100k 9.4%

$100k–$150k 4.0%

$150k–$200k 6.8%

$200k–$300k 22.2%

$300k–$500k 19.3%

$500k–$1M 11.3%

$1M+ 22.2%

Housing overview

Metric	Value
Median home value	$328,100
Median rent / month	$1,404
Owner occupied	91.7%
Renter occupied	8.3%
Vacant	19.4%
Single-family detached	78.0%
Large apartment buildings	0.0%
Mobile homes	22.0%
Median rooms	6.8
Avg household size (owned)	2.29

Year built

Era	%
2020 or later	0.8%
2010–2019	8.7%
2000–2009	11.8%
1990–1999	28.8%
1980–1989	12.2%
1970–1979	9.6%
1960–1969	4.1%
1950–1959	11.0%
1940–1949	2.2%
1939 or earlier	10.8%

Bedrooms

Size	% of units
No bedroom (studio)	1.6%
1 bedroom	4.4%
2 bedrooms	12.4%
3 bedrooms	47.8%
4 bedrooms	31.4%
5+ bedrooms	2.4%

Vehicles per household

Vehicles	% of households
No vehicle	5.4%
1 vehicle	29.7%
2 vehicles	35.5%
3 or more	29.5%

Heating fuel

Fuel type	%
Utility gas	2.3%
Electricity	73.0%
Propane / LP gas	22.7%
Fuel oil	0.1%

Households & families

Household type	Count	%
Married-couple family	543	53.2%
Cohabiting couple	49	4.8%
Male householder, no spouse	194	19.0%
Female householder, no spouse	235	23.0%
Households with children under 18	163	16.0%
Households with seniors (65+)	453	44.4%
Average household size	2.24

Marital status

Status	Male	Female
Never married	31.3%	24.2%
Married	50.8%	58.5%
Separated	6.3%	0.1%
Widowed	0.8%	10.2%
Divorced	10.8%	6.9%

Education

Less than 9th grade 1.7%

Some HS, no diploma 12.4%

HS graduate 25.0%

Some college, no degree 21.7%

Associate's degree 7.9%

Bachelor's degree 18.9%

Graduate / professional 12.5%

Metric	%
HS diploma or higher	85.9%
Bachelor's or higher	31.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	299	76.9%
High school	49	12.6%
College / grad school	41	10.5%

Employment

Industry of employment

Education & healthcare 24.5%

Professional & management 21.4%

Construction 12.0%

Arts, food & hospitality 11.2%

Manufacturing 7.7%

Transportation & utilities 6.8%

Finance & real estate 5.7%

Retail trade 3.9%

Agriculture & mining 1.8%

Other services 1.7%

Information 1.5%

Public administration 1.4%

Wholesale trade 0.2%

Occupation

Category	%
Management, business & arts	47.4%
Service	20.1%
Sales & office	9.9%
Natural resources & construction	6.0%
Production & transportation	16.5%

Employment type

Type	%
Private sector	69.7%
Government	13.8%
Self-employed	16.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	64.9%
Carpool	7.1%
Public transit	0.0%
Walk	2.7%
Work from home	11.4%
Other means	13.8%
Avg commute (minutes)	44.0

Poverty

All people 16.0%

Under 18 years 26.3%

18 and over 13.6%

Married-couple families 6.4%

Female-led households 5.9%

Income support

Source	% of households
Social Security	42.1%
Retirement income	34.4%
Supplemental Security	9.0%
Cash public assistance	1.8%
Food stamps / SNAP	10.0%

Health indicators

Condition	%
Obesity	36.8%
High blood pressure	45.3%
High cholesterol	38.8%
Diabetes	16.7%
Heart disease	8.1%
Stroke	4.8%
Asthma	10.6%
Arthritis	33.8%
Kidney disease	4.0%
Pulmonary disease	8.2%
Cancer	7.3%

Behavior / access	%
Smoking	18.2%
Binge drinking	16.3%
No physical activity	25.8%
Less than 7 hrs sleep	38.8%
Depression	20.2%
Fair or poor health	19.7%
Poor mental health	13.6%
Poor physical health	13.0%
No health insurance	16.6%
Visited doctor (checkup)	82.5%
Visited dentist	64.1%
Cholesterol screening	92.6%
Teeth loss	16.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	158	8.5%

Disability	%
Any disability	14.7%
Under 18	1.6%
18–64 years	13.6%
65 and over	26.2%

Health insurance coverage

Type	%
Private insurance	66.6%
Public insurance	40.9%
No insurance	13.0%
Uninsured under 19	1.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	2,213	96.1%
Spanish	36	1.6%
Other Indo-European	30	1.4%
Asian & Pacific Islander	6	0.3%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,252	97.8%
Born in same state	2,231	96.9%
Born in different state	1,347	58.5%
Foreign born	21	0.9%
Naturalized citizen	50	2.2%
Not a US citizen	22	44.0%

Ancestry

Ancestry	Count	%
Italian	436	18.9%
French	294	12.8%
Arab	211	9.2%
Polish	38	1.7%

Ancestry	Count	%
English	35	1.5%
Irish	15	0.7%
German	6	0.3%

Technology access

Metric	% of households
Computer access	44.4%
Internet access	94.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 29487

What city is ZIP code 29487 in?

ZIP code 29487 is primarily assigned to Wadmalaw Island, South Carolina.

What county is ZIP code 29487 in?

ZIP code 29487 falls within Charleston County, South Carolina.

Is ZIP code 29487 mostly owner-occupied?

92% of occupied units in ZIP code 29487 are owner-occupied, well above the national average.

Does ZIP code 29487 have an older population?

27% of residents in ZIP code 29487 are 65 or older, above the national average of ~17%.

Does ZIP code 29487 have a large retiree population?

42% of households in ZIP code 29487 receive Social Security income, suggesting a significant retiree or disability population.

What is the poverty rate in ZIP code 29487?

16% of residents in ZIP code 29487 live below the poverty line, above the national average.

What timezone is ZIP code 29487 in?

ZIP code 29487 observes the EST timezone.