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Allendale County, South Carolina

Allendale County profile, demographic data, and geographic information.

Allendale County is a county located in South Carolina, United States of America. As of official census estimates, it has a reported population of 7,355. The land area covers 408.10 sq mi. [1]

Local Government Administration U.S. Census Bureau GMAF

County Of Allendale County
Official Title: Chairperson
Address: PO BOX 190, ALLENDALE SC 29810-0190

Demographics & Population

Demographic Metric Estimate / Count Margin of Error Survey Period / Source
Total Population (2025 PEP Estimate) 7,355 — 2025 / Census
Median Age 44.7 yrs ±1.8 2020-2024 / Census ACS 5-Year 2024
Total Households 3,238 ±148 2020-2024 / Census ACS 5-Year 2024
Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric Estimate / Value Margin of Error
Total Housing Units 4,050 ±28
Occupied Housing Units 3,238 ±148
Vacant Housing Units 812 ±145
Median Home Value $76,200 ±$11,811
Median Gross Rent $662 ±$180
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric Estimate / Value Margin of Error
Median Household Income $32,328 ±$7,995
Per Capita Income $25,038 ±$5,501
Poverty Rate 28.2% ±5.9%
Population Below Poverty Level 1,911 ±398
Unemployment Rate 8.5% ±5.3%
Civilian Labor Force, Employed 2,575 ±256
Broadband Internet Rate 73.6% ±5.2%
Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at ALLENDALE 2 NW, SC US, located 3.7 miles from Allendale County. Local microclimates, topography, and elevation may cause municipal conditions to differ.
Month High (°F) Low (°F) Mean (°F) Precip (in) Snow (in)
January 58.5° 33.3° 45.9° 3.97" —
February 61.8° 35.9° 48.8° 3.65" —
March 68.8° 41.5° 55.1° 3.96" —
April 76.4° 48.7° 62.5° 3.11" —
May 83.2° 57.5° 70.4° 3.60" —
June 88.6° 66.0° 77.3° 4.78" —
July 91.6° 69.4° 80.5° 5.45" —
August 89.3° 68.7° 79.0° 5.56" —
September 84.9° 63.0° 73.9° 4.24" —
October 77.4° 51.6° 64.5° 3.36" —
November 68.6° 40.3° 54.4° 3.20" —
December 60.8° 35.0° 47.9° 3.93" —
Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Sources & Data Provenance

  1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 45005. • Official Source Dataset →
  2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
  3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
  4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.