Barnwell, SC · standard
ZIP Code 29812
Barnwell County, South Carolina — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 11,864
- 17/sq mi
- $51,870
- Median income
- $112,900
- Median home value
- 15.3%
- Bachelor's or higher
The verdict
Barnwell pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- 17th pct
- household income, US ZIPs
- 14th pct
- home value, US ZIPs
- 17
- people per sq mi
- 76%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 29812 against every reporting US ZIP.
ZIP code 29812 is classified by USPS as a standard delivery area and covers roughly 714.7 square miles in Barnwell, Barnwell County, South Carolina. The area is home to 11,864 residents, producing a population density of 17 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 29812 against South Carolina and the nation.
On the economic side, the median household income for ZIP 29812 sits at $51,870 (19% below the South Carolina average), while per-capita income is $29,275. The poverty rate stands at 23.8% and the unemployment rate at 7.3%. On housing, the median home value is $112,900 (50% below the state average) with median rent at $717 per month, and 76.4% of occupied units are owner-occupied, a direct signal of whether 29812 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 15.3% of adults hold a bachelor's degree or higher, the median age is 38.7, and the average commute is 27 minutes. We also surface 2 nearby ZIP codes within roughly 10 miles and 3 additional ZIPs sharing Barnwell County, so you can benchmark 29812 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 29812
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 29812.
- Retail trade
Retail trade
45 establishments
- Other services (except public administration)
Other services (except public administration)
34 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
23 establishments
- Accommodation and food services
Accommodation and food services
23 establishments
- Finance and insurance
Finance and insurance
18 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 29812, Barnwell, SC · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
11,864
Population
714.7
Area (sq mi)
17
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 29812?
38.7
Median Age
48.0%
Male
52.0%
Female
3.0%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$51,870
Median Household Income
-19% vs state
$29,275
Per Capita Income
23.8%
Poverty Rate
7.3%
Unemployment Rate
27.1 min
Mean Commute Time
How ZIP 29812 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$51,870 17th percentile higher than 17% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
5,141
Total Housing Units
4,244
Occupied Units
897
Vacant Units
2.57
Avg Household Size
Occupancy Type
$112,900
Median Home Value
-50% vs state
$717
Median Rent
1982
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-9.1%
YoY Change (2024)
201
HPI Index (2000 = 100)
+101%
Total Change Since 2000
Home values in ZIP 29812 have decreased 9.1% over the past year (2024). Since 2000, this ZIP has seen +101% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +4.3% | 148 |
| 2021 | +11.7% | 165 |
| 2022 | +4.9% | 173 |
| 2023 | +27.5% | 221 |
| 2024 | -9.1% | 201 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 223 business establishments in ZIP 29812, employing approximately 2,451 people with a combined annual payroll of $96,998,000.
223
Businesses
2,451
Employees
$97.0M
Annual Payroll
15
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 45 | 20.2% |
| Other services (except public administration) | 34 | 15.3% |
| Professional, scientific, and technical services | 23 | 10.3% |
| Accommodation and food services | 23 | 10.3% |
| Finance and insurance | 18 | 8.1% |
| Health care and social assistance | 18 | 8.1% |
| Administrative and support and waste management and remediation services | 12 | 5.4% |
| Manufacturing | 9 | 4.0% |
| Construction | 8 | 3.6% |
| Transportation and warehousing | 7 | 3.1% |
| Real estate and rental and leasing | 5 | 2.2% |
| Information | 4 | 1.8% |
| Agriculture, forestry, fishing and hunting | 3 | 1.4% |
| Utilities | 3 | 1.4% |
| Wholesale trade | 3 | 1.4% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 29812 vs 29826 →
ZIP 29812 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 29812
Barnwell (29812)
11,864 residents
- 29836 482
Martin (29836)
482 residents
- 29826 164
Elko (29826)
164 residents
What this shows Among its immediate neighbors, ZIP 29812 ranks the most populous — useful context the national average alone can't give.
More ZIP Codes in Barnwell County
Related Areas
Frequently Asked Questions
What county is ZIP code 29812 in? ▼
What is the population of ZIP code 29812? ▼
What is the median household income in ZIP 29812? ▼
What is the average home value in ZIP 29812? ▼
What is the demographic makeup of ZIP 29812? ▼
How many businesses are in ZIP code 29812? ▼
What are the main industries in ZIP code 29812? ▼
How have home values changed in ZIP code 29812? ▼
What is the education level in ZIP code 29812? ▼
What is the average commute time in ZIP 29812? ▼
What percentage of residents own vs. rent in ZIP 29812? ▼
What is the poverty rate in ZIP code 29812? ▼
ZIP Code Research Guides
Official Data Resources for Barnwell, SC
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.