Barnwell County, SC ZIP Codes
South Carolina (SC) · 5 ZIP codes · 5 cities
5
ZIP codes
20,580
population (2021)
-9.0%
pop change since 2010
45011
FIPS code
Barnwell County ZIP code map
About Barnwell County
Barnwell County is located in South Carolina and contains 5 ZIP codes across 5 cities and communities.
The county's population was 20,580 as of 2021,
a decrease of
9% from 22,621 in 2010.
The timezone is Central Time (observes DST).
The Federal Information Processing System (FIPS) code for Barnwell County is 45011.
| Population | |
|---|---|
| 2021 population | 20,580 |
| 2010 population | 22,621 |
| Change | -9.0% |
| County details | |
|---|---|
| State | South Carolina |
| FIPS code | 45011 |
| Timezone | Central |
| Daylight saving | Yes |
Cities in Barnwell County
ZIP codes for Barnwell County, SC (5)
| ZIP code | City | County | Map |
|---|---|---|---|
| 29812 | Barnwell | Barnwell | View map |
| 29813 | Hilda | Barnwell | View map |
| 29817 | Blackville | Barnwell | View map |
| 29826 | Elko | Barnwell | View map |
| 29853 | Williston | Barnwell | View map |
Demographics & statistics
21,370
Population
40.4
Median age
$42,459
Median household income
$25,524
Per capita income
$94,100
Median home value
$767
Median monthly rent
69.8%
Home ownership
23.3%
Poverty rate
5.5%
Unemployment
8,025
Housing units
13.6%
Bachelor's or higher
Age distribution
Male
Female
741
Under 5
759
681
5–9
697
639
10–14
654
802
15–19
823
737
20–24
755
1,102
25–34
1,129
1,190
35–44
1,219
1,243
45–54
1,275
732
55–59
750
746
60–64
764
1,189
65–74
1,219
510
75–84
522
243
85+
249
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 5,070 | 23.0% |
| 18 and over | 16,300 | 77.0% |
| 65 and over | 3,932 | 18.4% |
| Median age | 40.4 years | |
Race & ethnicity
White
52%
Black or African American
42.5%
Two or more races
1.9%
Hispanic or Latino
1.7%
Other race
1.5%
Asian
0.3%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 11,302 | 52% |
| Black or African American | 9,244 | 42.5% |
| Two or more races | 417 | 1.9% |
| Hispanic or Latino | 377 | 1.7% |
| Other race | 331 | 1.5% |
| Asian | 55 | 0.3% |
| American Indian / Alaska Native | 21 | 0.1% |
Household income
Under $10k
11.7%
$10k–$15k
7.6%
$15k–$25k
11.2%
$25k–$35k
10.6%
$35k–$50k
13.5%
$50k–$75k
13.5%
$75k–$100k
12.1%
$100k–$150k
14.3%
$150k–$200k
3.1%
$200k+
2.5%
| Range | % of households |
|---|---|
| Under $10k | 11.7% |
| $10k–$15k | 7.6% |
| $15k–$25k | 11.2% |
| $25k–$35k | 10.6% |
| $35k–$50k | 13.5% |
| $50k–$75k | 13.5% |
| $75k–$100k | 12.1% |
| $100k–$150k | 14.3% |
| $150k–$200k | 3.1% |
| $200k+ | 2.5% |
| Median income | $42,459 |
Housing
Home values
Under $50k
22.5%
$50k–$100k
31.1%
$100k–$150k
18.0%
$150k–$200k
8.8%
$200k–$300k
11.1%
$300k–$500k
6.3%
$500k–$1M
2.0%
$1M+
0.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $94,100 |
| Median rent / month | $767 |
| Owner occupied | 69.8% |
| Renter occupied | 30.2% |
| Vacant | 19.9% |
| Single-family detached | 60.6% |
| Large apartment buildings | 1.2% |
| Mobile homes | 30.2% |
| Median rooms | 5.5 |
| Avg household size (owned) | 2.49 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 6.0% |
| 2000–2009 | 9.3% |
| 1990–1999 | 22.1% |
| 1980–1989 | 20.0% |
| 1970–1979 | 15.6% |
| 1960–1969 | 8.6% |
| 1950–1959 | 10.9% |
| 1940–1949 | 1.8% |
| 1939 or earlier | 5.4% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 2.8% |
| 1 bedroom | 7.7% |
| 2 bedrooms | 23.6% |
| 3 bedrooms | 49.7% |
| 4 bedrooms | 14.7% |
| 5+ bedrooms | 1.4% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 11.5% |
| 1 vehicle | 34.6% |
| 2 vehicles | 28.4% |
| 3 or more | 25.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 10.3% |
| Electricity | 78.9% |
| Propane / LP gas | 9.1% |
| Wood | 0.9% |
| No fuel used | 0.4% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,165 | 37.3% |
| Cohabiting couple | 259 | 2.8% |
| Male householder, no spouse | 1,607 | 18.3% |
| Female householder, no spouse | 3,544 | 41.6% |
| Households with children under 18 | 2,163 | 25.5% |
| Households with seniors (65+) | 2,756 | 32.9% |
| Average household size | 2.46 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 40.6% | 30.9% |
| Married | 42.7% | 38.5% |
| Separated | 2.4% | 2.3% |
| Widowed | 4.2% | 15.0% |
| Divorced | 10.3% | 13.3% |
Education
Less than 9th grade
6.7%
Some HS, no diploma
9.6%
HS graduate
40.8%
Some college, no degree
17.8%
Associate's degree
11.5%
Bachelor's degree
8.7%
Graduate / professional
4.9%
| Metric | % |
|---|---|
| HS diploma or higher | 83.8% |
| Bachelor's or higher | 13.6% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 541 | 11.6% |
| Kindergarten | 238 | 6.4% |
| Elementary school | 1,876 | 37.9% |
| High school | 1,328 | 28.9% |
| College / grad school | 736 | 15.3% |
Employment
Industry of employment
Education & healthcare
21.1%
Manufacturing
18.9%
Arts, food & hospitality
10.5%
Retail trade
9.3%
Transportation & utilities
7.9%
Public administration
6.2%
Professional & management
6.1%
Other services
5.0%
Construction
4.7%
Finance & real estate
4.7%
Agriculture & mining
3.1%
Information
1.4%
Wholesale trade
1.0%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 21.6% |
| Service | 23.6% |
| Sales & office | 20.6% |
| Natural resources & construction | 10.4% |
| Production & transportation | 23.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 79.8% |
| Government | 18.1% |
| Self-employed | 1.8% |
| Unpaid family workers | 0.3% |
Commute
| Method | % |
|---|---|
| Drive alone | 83.2% |
| Carpool | 10.6% |
| Public transit | 2.2% |
| Walk | 1.1% |
| Other means | 1.1% |
| Avg commute (minutes) | 30.2 |
Poverty
All people
23.3%
Under 18 years
36.7%
18 and over
19.1%
Married-couple families
3.3%
Female-led households
40.4%
Income support
| Source | % of households |
|---|---|
| Social Security | 37.5% |
| Retirement income | 28.1% |
| Supplemental Security | 6.9% |
| Cash public assistance | 2.5% |
| Food stamps / SNAP | 21.4% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 46.7% |
| High cholesterol | 37.7% |
| Heart disease | 8.5% |
| Stroke | 5.3% |
| Asthma | 11.7% |
| Arthritis | 33.4% |
| Kidney disease | 4.2% |
| Pulmonary disease | 10.6% |
| Cancer | 6.4% |
| Behavior / access | % |
|---|---|
| Binge drinking | 14.9% |
| No physical activity | 35.6% |
| Less than 7 hrs sleep | 40.1% |
| Fair or poor health | 24.4% |
| Poor mental health | 17.1% |
| Poor physical health | 15.7% |
| No health insurance | 21.1% |
| Visited doctor (checkup) | 80.7% |
| Visited dentist | 55.0% |
| Cholesterol screening | 88.4% |
| Teeth loss | 24.7% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,232 | 7.5% |
| Disability | % |
|---|---|
| Any disability | 19.5% |
| Under 18 | 4.7% |
| 18–64 years | 16.3% |
| 65 and over | 48.8% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 54.9% |
| Public insurance | 48.3% |
| Uninsured under 19 | 6.3% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 19,870 | 93.5% |
| Spanish | 167 | 1.0% |
| Other Indo-European | 113 | 0.8% |
| Asian & Pacific Islander | 1 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 20,842 | 97.9% |
| Born in same state | 20,748 | 97.3% |
| Born in different state | 14,554 | 69.8% |
| Foreign born | 94 | 0.6% |
| Naturalized citizen | 528 | 2.1% |
| Not a US citizen | 170 | 35.5% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 3,996 | 18.7% |
| French | 1,066 | 5% |
| Italian | 453 | 2.1% |
| English | 33 | 0.2% |
| Ancestry | Count | % |
|---|---|---|
| Irish | 17 | 0.1% |
| Polish | 12 | 0.1% |
| Dutch | 7 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.0% |
| Internet access | 83.5% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Explore more South Carolina ZIP codes