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Data updated 2026-10-07

ZIP Code 29817 · Blackville, SC

Barnwell County · pop 4,139 · ACS 2020–2024

The median household income in ZIP Code 29817 (Blackville, SC) is $41,579, higher than 10% of the other ZIP Codes in South Carolina.

Per FHFA’s index for Barnwell County, home prices changed +57.3% over the five years to 2025.

01 — Where it stands

$41,579
Median household income
± $8,144 MOE
$84,300
Median home value
± $10,349 MOE
$955
Median gross rent
25.1%
Poverty rate
Percentiles for ZIP Code 29817 within Barnwell County, South Carolina and the U.S.
MeasureValueCounty percentileState percentileU.S. percentile
Median household income$41,579 ± $8,144— (fewer than 5 ZIP Codes)10th percentile (352 ZIP Codes compared)5th percentile (22,922 ZIP Codes compared)
Per capita income$27,423— (fewer than 5 ZIP Codes)25th percentile (352 ZIP Codes compared)15th percentile (22,922 ZIP Codes compared)
Poverty rate25.1%— (fewer than 5 ZIP Codes)86th percentile (352 ZIP Codes compared)91st percentile (22,922 ZIP Codes compared)
Adults with a bachelor’s degree or higher9.4%— (fewer than 5 ZIP Codes)5th percentile (352 ZIP Codes compared)4th percentile (22,922 ZIP Codes compared)
Owner-occupied homes64.7%— (fewer than 5 ZIP Codes)20th percentile (352 ZIP Codes compared)24th percentile (22,922 ZIP Codes compared)
Housing vacancy rate26.6%— (fewer than 5 ZIP Codes)90th percentile (352 ZIP Codes compared)90th percentile (22,922 ZIP Codes compared)
Median home value$84,300 ± $10,349— (fewer than 5 ZIP Codes)5th percentile (351 ZIP Codes compared)2nd percentile (22,833 ZIP Codes compared)
Median gross rent$955— (fewer than 5 ZIP Codes)49th percentile (351 ZIP Codes compared)39th percentile (22,865 ZIP Codes compared)
Income inequality (Gini index)0.541— (fewer than 5 ZIP Codes)94th percentile (352 ZIP Codes compared)96th percentile (22,922 ZIP Codes compared)
Average adjusted gross income per return$40,301— (fewer than 5 ZIP Codes)4th percentile (342 ZIP Codes compared)3rd percentile (22,230 ZIP Codes compared)
Returns with AGI of $200,000 or more0.0%— (fewer than 5 ZIP Codes)0th percentile (342 ZIP Codes compared)0th percentile (22,230 ZIP Codes compared)
Business establishments per 1,000 residents11.6— (fewer than 5 ZIP Codes)31st percentile (352 ZIP Codes compared)18th percentile (22,700 ZIP Codes compared)
Average annual pay per employee$31,918— (fewer than 5 ZIP Codes)10th percentile (350 ZIP Codes compared)5th percentile (22,551 ZIP Codes compared)

— = fewer than 5 ZIP Codes in the group.

Percentile groups: Barnwell County · South Carolina · U.S. Hover a percentile for the number of ZIP Codes compared. MOE = 90% margin of error.

02 — Home prices

+13.4%
1-year change, Barnwell County
2024–2025
+57.3%
5-year change, Barnwell County
2020–2025
+87.0%
10-year change, Barnwell County
2015–2025

Home price index — Barnwell County

Home price index, Barnwell County, 2000–2025Line chart of the annual home price index: 100.0 in 2000 and 234.6 in 2025. Every value is listed in the data table below the chart.100150200250200020052010201520202025234.6

FHFA does not publish a ZIP-level index for this area; the chart shows the Barnwell County index. FHFA county index (2000 = 100) — annual, developmental, not seasonally adjusted.

Data table
Home price index by year, Barnwell County
YearIndexAnnual change
2000100.0+2.8%
2001105.7+5.7%
2002111.5+5.5%
2003112.3+0.8%
2004115.3+2.6%
2005128.3+11.3%
2006133.2+3.9%
2007143.0+7.4%
2008142.8−0.2%
2009144.6+1.2%
2010139.1−3.8%
2011137.4−1.2%
2012133.8−2.6%
2013132.8−0.8%
2014129.5−2.5%
2015125.4−3.1%
2016128.3+2.3%
2017132.9+3.6%
2018136.8+2.9%
2019145.9+6.7%
2020149.2+2.2%
2021161.8+8.5%
2022172.7+6.7%
2023220.1+27.5%
2024206.8−6.0%
2025234.6+13.4%

03 — Nearby ZIP Codes

ZIP Code 29817 and nearby ZIP Codes
ZIPPlaceDistanceMedian household incomeMedian home valuePoverty rate5-yr HPI change
29817Blackville, SCthis ZIP Code$41,579$84,30025.1%—
29826Elko, SC5.2 mi$43,269$78,60017.4%—
29042Denmark, SC8.4 mi$41,047$88,20024.2%—
29113Norway, SC8.9 mi$48,857$84,20018.5%—
29853Williston, SC9.5 mi$44,983$107,10024.8%+40.5%
29146Springfield, SC9.7 mi$34,318$79,60017.9%—
29812Barnwell, SC12.5 mi$51,870$112,90023.8%+62.3%

Up to six nearest ZIP Code Tabulation Areas within 30 miles, by straight-line distance between Census center points (2024 Gazetteer).

04 — Business mix

48
Establishments
549
Employees
$17.5M
Annual payroll
$31,918
Average pay per employee
Establishments by sector, ZIP Code 29817
SectorEstablishmentsShare of ZIPU.S. shareRelative concentration
Retail trade1020.8%12.4%1.7×
Other services1020.8%9.5%2.2×
Construction612.5%9.6%1.3×
Health care & social assistance510.4%11.9%0.9×
Accommodation & food services510.4%9.3%1.1×
Transportation & warehousing48.3%3.3%2.5×
Manufacturing36.2%3.3%1.9×

Counts are establishments (business locations), not jobs. Relative concentration = the sector’s share of establishments here divided by its share in the U.S. (1.0× = the same share). Average pay is shown only where at least 20 employees are reported. ZIP Code Business Patterns 2023.

05 — About this data

How percentiles are calculated

Percentiles compare this ZIP Code with other ZIP Codes in the same county, the same state and the whole country. Only ZIP Codes with their own American Community Survey estimate, a population of at least 1,000 and a published median household income are compared, and only those with a value for the measure. A percentile of 64th means the value is higher than 64% of the other ZIP Codes in that group (0 is the lowest value, 100 the highest); it describes the size of a number, not a judgment about the area. County and state percentiles are left blank when the group has fewer than 5 ZIP Codes. The number of ZIP Codes compared is shown with each percentile.

Census figures are published for ZIP Code Tabulation Areas, which approximate USPS ZIP Code delivery areas; values shown as — are not published or are suppressed by the source.

Use of this page

Area statistics only. These figures describe a ZIP Code area — not any person or household — and do not rate the area or the people who live there. CoverFi is not a consumer reporting agency; do not use this page to make decisions about credit, insurance, employment or housing.

Sources

  1. U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ZIP Code Tabulation Areas. Estimates are survey-based and have margins of error.
  2. U.S. Census Bureau, ZIP Code Business Patterns 2023 (establishment counts by NAICS sector; employment and payroll totals).
  3. Federal Housing Finance Agency, House Price Index for five-digit ZIP Codes, census tracts and counties — annual, developmental, not seasonally adjusted.
  4. IRS Statistics of Income, Individual Income Tax ZIP Code Data, tax year 2022.
  5. U.S. Census Bureau, 2024 Gazetteer Files (ZCTA locations, used for nearby ZIP Codes).
  6. HUD USPS ZIP Code Crosswalk Files (ZIP-to-tract and ZIP-to-county assignment).

This product uses Census Bureau data but is not endorsed or certified by the Census Bureau. This product uses the HUD User Data API but is not endorsed or certified by HUD User. ZIP Code Tabulation Areas are Census approximations of USPS ZIP Code delivery areas and may not match them exactly. ZIP Code is a trademark of the United States Postal Service.