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South Carolina ZIP Codes
Mccormick County
Clarks Hill, SC
29821
29821 ZIP Code — Clarks Hill, SC
Mccormick County, South Carolina
ZIP code 29821 is located in
Clarks Hill ,
South Carolina ,
within Mccormick County .
It covers approximately 55.21 square miles and serves a population of
1,019 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 864 .
About ZIP code 29821
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $184,200. Owner-occupancy is high at 93%, well above the national average.
Median household income is $93,000. Poverty affects 23% of residents, above the national average. 35% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is sales and office, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
College attainment at 19% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of smoking (21%) compared to national benchmarks.
Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.
Overall, ZIP code 29821 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a strong veteran community, high homeownership, and a significant Social Security-dependent population.
29821 ZIP code map
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Cities in ZIP code 29821
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
1,019
Population density
18 / sq mi
State FIPS
45
County FIPS
065
Geography
Land area
55.21 sq mi
Water area
5.05 sq mi
Latitude
33.6267
Longitude
-82.1074
Timezone
Eastern (ET)
Area code
864
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
53.0%
50.6%
45.8%
$50k – $100k
25.7%
35.4%
30.5%
$100k – $200k
14.9%
10.9%
18.6%
Over $200k
6.5%
3.0%
5.1%
Demographics & statistics
$93,000
Median household income
$184,200
Median home value
18.6%
Bachelor's or higher
Age distribution
Age summary
Group Count %
Under 18 224 22.0%
18 and over 795 78.0%
65 and over 195 19.1%
Median age 45.5 years
Race & ethnicity
Black or African American
7.9%
American Indian / Alaska Native
1%
Group Count %
White 914 89.7%
Black or African American 81 7.9%
Two or more races 14 1.4%
American Indian / Alaska Native 10 1%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
53.0%
50.6%
45.8%
$50k – $100k
25.7%
35.4%
30.5%
$100k – $200k
14.9%
10.9%
18.6%
Over $200k
6.5%
3.0%
5.1%
Range % of households
Under $10k 2.4%
$10k–$15k 4.8%
$15k–$25k 2.4%
$25k–$35k 13.3%
$35k–$50k 4.5%
$50k–$75k 5.3%
$75k–$100k 27.1%
$100k–$150k 14.1%
$150k–$200k 14.9%
$200k+ 11.2%
Median income $93,000
Housing
Housing overview
Metric Value
Median home value $184,200
Median rent / month $0
Owner occupied 93.4%
Renter occupied 6.6%
Vacant 37.2%
Single-family detached 52.6%
Large apartment buildings 0.0%
Mobile homes 46.4%
Median rooms 6.1
Avg household size (owned) 2.68
Year built
Era %
2020 or later 0.7%
2010–2019 6.7%
2000–2009 24.0%
1990–1999 35.2%
1980–1989 19.2%
1970–1979 3.8%
1960–1969 0.8%
1950–1959 7.0%
1940–1949 2.5%
1939 or earlier 0.0%
Bedrooms
Size % of units
No bedroom (studio) 0.8%
1 bedroom 5.3%
2 bedrooms 28.9%
3 bedrooms 40.6%
4 bedrooms 22.4%
5+ bedrooms 2.0%
Vehicles per household
Vehicles % of households
No vehicle 1.3%
1 vehicle 19.9%
2 vehicles 40.4%
3 or more 38.3%
Heating fuel
Fuel type %
Utility gas 1.9%
Electricity 80.3%
Propane / LP gas 13.3%
Wood 4.5%
Households & families
Household type Count %
Married-couple family 251 66.8%
Cohabiting couple 6 1.6%
Male householder, no spouse 32 8.5%
Female householder, no spouse 87 23.1%
Households with children under 18 137 36.4%
Households with seniors (65+) 139 37.0%
Average household size 2.71
Marital status
Status Male Female
Never married 26.0% 24.6%
Married 63.8% 53.3%
Separated 0.0% 8.9%
Widowed 1.4% 9.5%
Divorced 8.8% 3.7%
Education
Less than 9th grade
10.0%
Some HS, no diploma
11.7%
Some college, no degree
16.4%
Graduate / professional
4.3%
Metric %
HS diploma or higher 78.3%
Bachelor's or higher 18.6%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 0 0.0%
Kindergarten 17 5.4%
Elementary school 198 62.7%
High school 47 14.9%
College / grad school 54 17.1%
Employment
Industry of employment
Education & healthcare
27.1%
Professional & management
13.3%
Arts, food & hospitality
10.9%
Transportation & utilities
5.7%
Finance & real estate
1.2%
Occupation
Category %
Management, business & arts 26.4%
Service 21.6%
Sales & office 30.6%
Natural resources & construction 9.5%
Production & transportation 11.9%
Employment type
Type %
Private sector 78.9%
Government 17.3%
Self-employed 3.8%
Unpaid family workers 0.0%
Commute
Method %
Drive alone 90.7%
Carpool 3.6%
Public transit 0.0%
Walk 1.2%
Work from home 4.5%
Other means 0.0%
Avg commute (minutes) 27.2
Poverty
Married-couple families
7.6%
Female-led households
20.0%
Income support
Source % of households
Social Security 35.4%
Retirement income 29.8%
Supplemental Security 2.4%
Cash public assistance 4.0%
Food stamps / SNAP 13.8%
Health indicators
Condition %
Obesity 41.4%
High blood pressure 40.3%
High cholesterol 38.1%
Diabetes 13.7%
Heart disease 7.3%
Stroke 4.0%
Asthma 10.5%
Arthritis 31.1%
Kidney disease 3.4%
Pulmonary disease 8.5%
Cancer 6.5%
Behavior / access %
Smoking 21.3%
Binge drinking 16.7%
No physical activity 28.2%
Less than 7 hrs sleep 37.1%
Depression 22.5%
Fair or poor health 18.2%
Poor mental health 15.5%
Poor physical health 13.0%
No health insurance 16.9%
Visited doctor (checkup) 79.0%
Visited dentist 64.3%
Cholesterol screening 90.0%
Teeth loss 18.0%
Veterans & disability
Veterans Count %
Civilian veterans 111 14.0%
Disability %
Any disability 20.6%
Under 18 0.0%
18–64 years 16.2%
65 and over 57.9%
Health insurance coverage
Type %
Private insurance 58.1%
Public insurance 50.7%
No insurance 2.4%
Uninsured under 19 0.0%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 980 96.2%
Spanish 0 0.0%
Other Indo-European 0 0.0%
Asian & Pacific Islander 0 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 1,014 99.5%
Born in same state 995 97.6%
Born in different state 230 22.6%
Foreign born 19 1.9%
Naturalized citizen 5 0.5%
Not a US citizen 5 100.0%
Ancestry
Ancestry Count %
Arab 380 37.3%
French 95 9.3%
Ancestry Count %
Italian 59 5.8%
Irish 11 1.1%
Technology access
Metric % of households
Computer access 36.9%
Internet access 91.5%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 29821
What city is ZIP code 29821 in?
ZIP code 29821 is primarily assigned to Clarks Hill, South Carolina.
What county is ZIP code 29821 in?
ZIP code 29821 falls within Mccormick County, South Carolina.
Is ZIP code 29821 mostly owner-occupied?
93% of occupied units in ZIP code 29821 are owner-occupied, well above the national average.
What is the poverty rate in ZIP code 29821?
23% of residents in ZIP code 29821 live below the poverty line, above the national average.
Does ZIP code 29821 have a large veteran population?
14% of civilians in ZIP code 29821 are veterans, above the national average of ~7%.
Does ZIP code 29821 have a large retiree population?
35% of households in ZIP code 29821 receive Social Security income, suggesting a significant retiree or disability population.
What timezone is ZIP code 29821 in?
ZIP code 29821 observes the EST timezone.
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