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South Carolina ZIP Codes
Barnwell County
Blackville, SC
29817
29817 ZIP Code — Blackville, SC
Barnwell County, South Carolina
ZIP code 29817 is located in
Blackville ,
South Carolina ,
within Barnwell County .
It covers approximately 114.54 square miles and serves a population of
4,392 residents.
This is a standard ZIP code in the Eastern (ET) timezone,
served by area code 803 .
About ZIP code 29817
The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $81,900. Owner-occupancy sits near the national average at 64%.
Median household income is $41,406. Poverty affects 19% of residents, above the national average. SNAP benefit usage at 25% of households reflects economic stress in the area. 42% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is production, transportation, and material moving, with manufacturing as the leading industry. The average commute of 32 minutes is near the national average.
College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.
Health indicators show elevated rates of obesity (44%), diabetes (19%), smoking (27%) compared to national benchmarks. 20% of residents lack health insurance, above the national average.
Notable community characteristics include disability rates above the national average at 23%.
Overall, ZIP code 29817 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.
29817 ZIP code map
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Cities in ZIP code 29817
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Nearby ZIP codes
Demographics
updated 05/2026
Population
Total population
4,392
Population density
38 / sq mi
State FIPS
45
County FIPS
011
Geography
Land area
114.54 sq mi
Water area
0.66 sq mi
Latitude
33.3621
Longitude
-81.2893
Timezone
Eastern (ET)
Area code
803
Economics
updated 05/2026
Household income
Income range
This ZIP
County avg
State avg
Under $50k
58.3%
58.0%
45.8%
$50k – $100k
31.1%
29.1%
30.5%
$100k – $200k
9.2%
11.2%
18.6%
Over $200k
1.4%
1.7%
5.1%
Demographics & statistics
$41,406
Median household income
Age distribution
Age summary
Group Count %
Under 18 914 20.8%
18 and over 3,478 79.2%
65 and over 842 19.2%
Median age 40.8 years
Race & ethnicity
Black or African American
52.3%
Group Count %
Black or African American 2,395 52.3%
White 1,764 38.5%
Hispanic or Latino 190 4.1%
Other race 180 3.9%
Two or more races 43 0.9%
Asian 10 0.2%
Household income
Income range
This ZIP
County avg
State avg
Under $50k
58.3%
58.0%
45.8%
$50k – $100k
31.1%
29.1%
30.5%
$100k – $200k
9.2%
11.2%
18.6%
Over $200k
1.4%
1.7%
5.1%
Range % of households
Under $10k 8.7%
$10k–$15k 6.7%
$15k–$25k 16.4%
$25k–$35k 8.9%
$35k–$50k 13.5%
$50k–$75k 18.3%
$75k–$100k 6.7%
$100k–$150k 15.2%
$150k–$200k 3.5%
$200k+ 2.1%
Median income $41,406
Housing
Housing overview
Metric Value
Median home value $81,900
Median rent / month $882
Owner occupied 64.4%
Renter occupied 35.6%
Vacant 29.1%
Single-family detached 61.5%
Large apartment buildings 1.4%
Mobile homes 32.6%
Median rooms 5.3
Avg household size (owned) 2.61
Year built
Era %
2020 or later 0.3%
2010–2019 2.5%
2000–2009 3.4%
1990–1999 19.0%
1980–1989 27.3%
1970–1979 20.1%
1960–1969 10.4%
1950–1959 10.9%
1940–1949 2.1%
1939 or earlier 4.0%
Bedrooms
Size % of units
No bedroom (studio) 3.7%
1 bedroom 10.0%
2 bedrooms 27.0%
3 bedrooms 47.0%
4 bedrooms 10.6%
5+ bedrooms 1.6%
Vehicles per household
Vehicles % of households
No vehicle 12.2%
1 vehicle 35.8%
2 vehicles 26.0%
3 or more 26.0%
Heating fuel
Fuel type %
Utility gas 9.6%
Electricity 80.7%
Propane / LP gas 7.3%
Wood 1.2%
No fuel used 0.3%
Households & families
Household type Count %
Married-couple family 671 41.2%
Cohabiting couple 29 1.8%
Male householder, no spouse 223 13.7%
Female householder, no spouse 704 43.3%
Households with children under 18 440 27.0%
Households with seniors (65+) 629 38.7%
Average household size 2.64
Marital status
Status Male Female
Never married 37.7% 29.7%
Married 45.8% 40.5%
Separated 3.0% 2.5%
Widowed 0.7% 13.2%
Divorced 12.9% 14.1%
Education
Some HS, no diploma
12.2%
Some college, no degree
16.7%
Graduate / professional
5.1%
Metric %
HS diploma or higher 80.8%
Bachelor's or higher 9.1%
School enrollment (ages 3–17)
Type Count %
Nursery / preschool 151 18.8%
Kindergarten 73 9.1%
Elementary school 274 34.1%
High school 180 22.4%
College / grad school 126 15.7%
Employment
Industry of employment
Education & healthcare
20.0%
Public administration
8.1%
Transportation & utilities
7.4%
Arts, food & hospitality
6.7%
Finance & real estate
4.5%
Professional & management
3.1%
Agriculture & mining
2.7%
Occupation
Category %
Management, business & arts 19.7%
Service 25.3%
Sales & office 15.1%
Natural resources & construction 12.0%
Production & transportation 27.8%
Employment type
Type %
Private sector 87.3%
Government 10.5%
Self-employed 1.9%
Unpaid family workers 0.3%
Commute
Method %
Drive alone 79.2%
Carpool 17.3%
Public transit 0.0%
Walk 2.0%
Work from home 0.9%
Other means 0.6%
Avg commute (minutes) 31.7
Poverty
Married-couple families
3.4%
Female-led households
33.6%
Income support
Source % of households
Social Security 41.7%
Retirement income 24.6%
Supplemental Security 6.4%
Cash public assistance 2.1%
Food stamps / SNAP 25.2%
Health indicators
Condition %
Obesity 44.4%
High blood pressure 50.0%
High cholesterol 38.2%
Diabetes 19.1%
Heart disease 9.1%
Stroke 6.0%
Asthma 12.3%
Arthritis 34.9%
Kidney disease 4.7%
Pulmonary disease 11.5%
Cancer 6.3%
Behavior / access %
Smoking 26.5%
Binge drinking 13.8%
No physical activity 38.6%
Less than 7 hrs sleep 41.4%
Depression 22.6%
Fair or poor health 27.5%
Poor mental health 17.4%
Poor physical health 17.1%
No health insurance 22.7%
Visited doctor (checkup) 81.9%
Visited dentist 51.7%
Cholesterol screening 88.5%
Teeth loss 27.3%
Veterans & disability
Veterans Count %
Civilian veterans 183 5.3%
Disability %
Any disability 23.0%
Under 18 2.5%
18–64 years 17.5%
65 and over 64.4%
Health insurance coverage
Type %
Private insurance 51.1%
Public insurance 44.5%
No insurance 19.7%
Uninsured under 19 16.7%
Language & origin
Language spoken at home (age 5+)
Language Count %
English only 4,123 93.9%
Spanish 70 1.7%
Other Indo-European 69 1.7%
Asian & Pacific Islander 1 0.0%
Other languages 0 0.0%
Place of birth & citizenship
Origin Count %
Native born (US) 4,327 98.5%
Born in same state 4,255 96.9%
Born in different state 3,565 81.2%
Foreign born 72 1.6%
Naturalized citizen 65 1.5%
Not a US citizen 16 24.6%
Ancestry
Ancestry Count %
Arab 634 14.4%
French 126 2.9%
Ancestry Count %
Italian 31 0.7%
Dutch 7 0.2%
Technology access
Metric % of households
Computer access 37.0%
Internet access 81.9%
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 29817
What city is ZIP code 29817 in?
ZIP code 29817 is primarily assigned to Blackville, South Carolina.
What county is ZIP code 29817 in?
ZIP code 29817 falls within Barnwell County, South Carolina.
How educated is the population of ZIP code 29817?
9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.
What is the poverty rate in ZIP code 29817?
19% of residents in ZIP code 29817 live below the poverty line, above the national average.
Does ZIP code 29817 have a large retiree population?
42% of households in ZIP code 29817 receive Social Security income, suggesting a significant retiree or disability population.
What are the health statistics for ZIP code 29817?
Health data for ZIP code 29817 shows elevated rates of obesity (44%) and diabetes (19%) and smoking (27%) compared to national benchmarks.
What timezone is ZIP code 29817 in?
ZIP code 29817 observes the EST timezone.
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