Barnwell
Source:
South Carolina
Barnwell is a sparsely populated county in South Carolina with 4 ZIP codes, 23,521 people, and one of the lowest household incomes among US counties among US counties. All data is sourced from the U.S. Census Bureau American Community Survey (ACS) 2023 5-Year Estimates.
National county placement
According to ACS 5-Year Estimates, Barnwell, SC sits among US counties with one of the lowest household incomes among US counties, on a sparsely populated county population base, across a handful of delivery areas.
- 8th pct
- household income vs 3,210 US counties
- 23,521
- combined ZIP population
- 4
- USPS ZIP codes covered
- $46,144
- avg ZIP median income
Income percentile ranks this county's average ZIP median household income against 3,210 US counties with ACS income on at least one ZIP.
Barnwell lands in the national county income distribution as one of the lowest household incomes among US counties on sparsely populated county footing (FIPS 45011, 4 ZIPs, combined population 23,521). On this short ZIP list the county page is mainly the FIPS bridge - household ACS fields live on the primary ZIP.
Lower-income footing on a short ZIP list (4 codes, population 23,521). Skip multi-ZIP synthesis; open the primary code first, then return here only for the FIPS-keyed rent and crime overlays.
Population sits in the five-to-twenty-five thousand band with few ZIPs - still ZIP-first for household fields, but the county seat ZIP (usually the densest row) is worth a second glance before the FIPS overlays.
Within South Carolina, Orangeburg is the closest lower-income county and Williamsburg the closest higher-income county by average ZIP household income. Their 16 and 7 ZIP footprints are the immediate statewide comparison set for Barnwell. Use those locations as statewide context before treating the county average as a local-market answer.
4
Total ZIPs
23,521
Total Population
ZIP Codes in Barnwell
Side-by-side: Compare 29812 vs 29853 →
Frequently Asked Questions
What is the population of Barnwell?
Barnwell has a total population of 23,521 across 4 ZIP codes, based on U.S. Census Bureau ACS 2023 data.
What ZIP codes are in Barnwell?
Barnwell includes 4 ZIP codes: 29812, 29853, 29817, 29826.