Postal Codes

29821 ZIP Code

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ZIP code 29821 covers Clarks Hill, South Carolina, with a population of about 1,245 and a median household income of $69,659.

Population
1,24523 per square mile
Median age
41.12.4 points above the US average
Median household income
$69,659about the South Carolina median
Poverty rate
37.8%25.4 points above the US average
Typical home value
$311,307up 27.9% in five years
Median rent
$95715% below the South Carolina median
Degree or higher
13.8%21.2 points below the US average
Homeownership
93.3%28.3 points above the US average
Time zone
Eastern UTC-05:00observes daylight saving time
Businesses
11

Where 29821 is

Clarks Hill, South Carolina — the area the Census Bureau draws for this ZIP code. ZIP codes are sets of delivery routes rather than areas, so this is the Census approximation of one, not a Postal Service boundary.

People and households

American Community Survey 2019–2023 five-year estimates

Population1,245
Median age41.1
Family households72.8%
Born outside the US3%
Speaks a language other than English at home0.6%
White (non-Hispanic)76.6%
Black (non-Hispanic)9.4%
Asian (non-Hispanic)0%
Hispanic or Latino12.4%
Veterans10.4%
Population by age
MaleFemale0-45-910-1415-1920-2425-3435-4445-5455-6465-7475-8485+
Income and poverty

American Community Survey 2019–2023 five-year estimates

Median household income$69,659
Income per person$30,169
Poverty rate37.8%
Households on SNAP or cash assistance14.5%

Household income distribution

Under $10k2.3%
$10–15k5.4%
$15–20k1.0%
$20–25k7.0%
$25–30k3.6%
$30–35k8.8%
$35–40k0.0%
$40–45k11.7%
$45–50k1.3%
$50–60k0.0%
$60–75k9.6%
$75–100k11.7%
$100–125k6.2%
$125–150k6.0%
$150–200k16.6%
$200k or more8.8%

Income as declared to the IRS

Filed returns rather than survey responses, so this counts tax units and not households.

Tax returns filed680
Mean adjusted gross income$86,704
Returns declaring $200,000 or more7.4%
Returns, under $25k29.4%
Returns, $25k–$50k23.5%
Returns, $50k–$75k16.2%
Returns, $75k–$100k7.4%
Returns, $100k–$200k16.2%
Returns, $200k or more7.4%
Housing

American Community Survey 2019–2023 five-year estimates

Median gross rent$957
Rent as a share of household income45.7%
Owner-occupied93.3%
Vacant homes35.2%
Median year built1994

What the homes are

Detached house53.9%
Attached house0.8%
Mobile home44.1%
Boat, RV or van1.2%
Home values and rents today

Zillow Home Value Index and Zillow Observed Rent Index, courtesy of Zillow. Monthly and current, where the Census figures above are a five-year average and are capped at $2,000,000.

Typical home value$311,307as of 2026-07
Typical home value, 1 yearup 5.2%
Typical home value, 5 yearsup 27.9%
Typical home value, 10 yearsup 75.2%
Typical home value since 2000
200920172026$311,307$149,617

$167,175 in 2009 to $311,307 in 2026.

Work, commuting and education

American Community Survey 2019–2023 five-year estimates

Unemployment rate3.3%
Bachelor's degree or higher13.8%
High school diploma or higher76.3%
Works from home4.1%
Drives to work alone95.7%
Takes public transport0%
Commutes 45 minutes or more23.1%
Health

CDC PLACES 2025 release, model-based estimates. These are modelled small-area estimates for adults, not counts of diagnosed cases.

Obesity37.1% 3.7 pts above the national average of 33.4%
Diagnosed diabetes17.7% 5.7 pts above the national average of 12%
Currently smokes15.5% 2.3 pts above the national average of 13.2%
High blood pressure44% 9.9 pts above the national average of 34.1%
Fair or poor general health23.1% 2.8 pts above the national average of 20.3%
No health insurance (18–64)11.4% same as the national average of 11.3%
Depression21.1% 0.8 pts below the national average of 21.9%
No leisure-time physical activity28.2% 2.8 pts above the national average of 25.4%
Arthritis34.2% 9.1 pts above the national average of 25.1%
Binge drinking14% 2 pts below the national average of 16%
Taking blood pressure medication84.1% 9.4 pts above the national average of 74.7%
Cancer (non-skin)10.3% 2.6 pts above the national average of 7.7%
Current asthma10% same as the national average of 10.4%
Coronary heart disease8.9% 2.7 pts above the national average of 6.2%
Routine check-up in past year82.9% 6.2 pts above the national average of 76.7%
Cholesterol screening88.6% 2.7 pts above the national average of 85.9%
Cognitive disability14.8% same as the national average of 14.8%
Colorectal screening70% 5.7 pts above the national average of 64.3%
COPD9.8% 3.2 pts above the national average of 6.6%
Visited a dentist60.3% 1 pts below the national average of 61.3%
Any disability34.9% 4.2 pts above the national average of 30.7%
Lacks emotional support24% 0.8 pts below the national average of 24.8%
Food insecurity18.6% 1.5 pts above the national average of 17.1%
Received food stamps11.9% 2.4 pts below the national average of 14.3%
Hearing disability8.7% 2 pts above the national average of 6.7%
High cholesterol43.5% 7.3 pts above the national average of 36.2%
Housing insecurity13.1% 0.7 pts below the national average of 13.8%
Independent living disability9.8% 1.4 pts above the national average of 8.4%
Lacks transport8.9% same as the national average of 9.2%
Loneliness30.9% 3.5 pts below the national average of 34.4%
Mammography use75.1% 0.8 pts below the national average of 75.9%
Poor mental health (14+ days)15.9% 0.9 pts below the national average of 16.8%
Mobility disability19.3% 5.3 pts above the national average of 14%
Poor physical health (14+ days)16.1% 2.6 pts above the national average of 13.5%
Self-care disability5.4% 1.4 pts above the national average of 4%
Utility shut-off threat9.1% same as the national average of 8.8%
Sleeps under 7 hours36.4% same as the national average of 36.4%
Stroke5.1% 1.7 pts above the national average of 3.4%
All natural teeth lost18.5% 5.5 pts above the national average of 13%
Vision disability6.7% 1.1 pts above the national average of 5.6%
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Business and employment

Census ZIP Code Business Patterns 2022

Business establishments11
People employed68
Annual payroll$2,363,000
Natural hazard risk

FEMA National Risk Index, estimated for this ZIP code from census tract data — the NRI is not published per ZIP.

Overall riskHigher than 32.2% of US census tracts
FEMA ratingVery Low to Relatively Moderate across the 3 census tracts this ZIP code covers
Expected annual loss29.5 out of 100
Community resilience18.8 out of 100

By hazard

Score is out of 100 and is the area-weighted average across the census tracts this ZIP code covers. The rating beside it is the highest any one of those tracts carries.

Ice storm86.1Relatively High at its worst in this ZIP code
Landslide82.4Relatively Low at its worst in this ZIP code
Wildfire82.1Relatively Low at its worst in this ZIP code
Strong wind76Relatively High at its worst in this ZIP code
Hurricane70.2Relatively Moderate at its worst in this ZIP code
Hail67.8Relatively Moderate at its worst in this ZIP code
Lightning67.2Relatively High at its worst in this ZIP code
Tornado60.5Relatively Moderate at its worst in this ZIP code
Earthquake57Relatively Low at its worst in this ZIP code
Cold wave52.8Relatively Moderate at its worst in this ZIP code
Drought45.6Relatively Low at its worst in this ZIP code
Heat wave44Relatively Moderate at its worst in this ZIP code
River flooding40.8Relatively Moderate at its worst in this ZIP code
Winter weather30.6Relatively Low at its worst in this ZIP code
Compared with South Carolina and the United States

State and national columns are figures for those areas, not for this ZIP code. American Community Survey 2019–2023 five-year estimates

This ZIPSouth CarolinaUnited States
Median household income$69,659$66,818$78,538
Income per person$30,169$37,993$43,289
Poverty rate37.8%14.2%12.4%
Median home value$236,700$303,400
Median gross rent$957$1,126$1,348
Homeownership93.3%71.4%65%
Bachelor's degree or higher13.8%31.5%35%
Unemployment rate3.3%5%5.2%
Works from home4.1%10%13.5%
Born outside the US3%5.6%13.9%
Median age41.140.138.7
Climate

NOAA US Climate Normals 1991-2020, from the nearest weather station with a full year of records. The station and its distance are named above, because a station forty kilometres away describes somewhere else.

Weather stationCLARKS HILL 1 W, SC US4 km away
Rain in a year47 in

Average high and low by month

January55.4°F / 35.9°F4.03 in rain
February59.1°F / 38°F3.91 in rain
March66.9°F / 44.1°F4.32 in rain
April75.5°F / 51.4°F3.08 in rain
May82.5°F / 60.1°F3.43 in rain
June89°F / 67.8°F4.72 in rain
July92.2°F / 71.7°F4.74 in rain
August90.6°F / 70.6°F4.46 in rain
September85.5°F / 65°F3.67 in rain
October76°F / 54.5°F3.04 in rain
November65.7°F / 43.6°F3.3 in rain
December57.9°F / 38.2°F4.21 in rain
Access to food

USDA Food Access Research Atlas, estimated for this ZIP code from census tract data. Each figure is the share of the ZIP code's land area that falls in a tract carrying that flag.

Low income and far from a supermarketNone of this ZIP code
Far from a supermarketNone of this ZIP code
No vehicle and far from a supermarket47% of this ZIP code's area
School districts

NCES Geographic Relationship File 2025, which states the association between each district and each ZIP code tabulation area directly. Elementary and secondary districts can cover the same ground, so shares need not total 100%.

This ZIP code is served by 2 school districts, so the address decides which one, not the ZIP code.

Edgefield County School District52.6% of this ZIP code's land area
McCormick County School District47.4% of this ZIP code's land area
Community and walkability

CDC/ATSDR Social Vulnerability Index 2022 and the EPA National Walkability Index, both estimated for this ZIP code from census tract data. Vulnerability figures are national percentile ranks, not measurements.

Overall social vulnerability46more vulnerable than 46% of US census tracts
Socioeconomic status50more vulnerable than 50% of US census tracts
Household characteristics57more vulnerable than 57% of US census tracts
Racial and ethnic minority status40more vulnerable than 40% of US census tracts
Housing type and transport37more vulnerable than 37% of US census tracts
Walkability3.1 out of 20Least walkable
Nearby ZIP codes

The closest ZIP codes by centre point, which is not the same as sharing a border.

29838 Modoc, SC8.9 km away
30809 Evans, GA12.2 km away
30802 Appling, GA12.9 km away
30907 Augusta, GA15.4 km away
30917 Augusta, GA15.8 km away
29844 Parksville, SC16.1 km away
29860 North Augusta, SC17 km away
30909 Augusta, GA20.8 km away
Location, counties and time zone

County shares from Census 2020 ZCTA relationship files. Time zone from the USDOT National Transportation Atlas, which renders the boundaries written into 49 CFR Part 71.

Edgefield County52.6% of this ZIP code's land area
McCormick County47.4% of this ZIP code's land area
Time zoneEastern (UTC-05:00 standard)
Daylight saving timeObserved
Land area55.21 sq mi
Water area5.05 sq mi
Population density23 people per sq mi
Latitude, longitude33.6505, -82.1488

Figures are published for this ZIP code or its Census tabulation area unless a section says otherwise. Estimates whose margin of error made them unreliable are omitted rather than shown. Sources: US Census Bureau, CDC, IRS.

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