Wallace, South Carolina Demographics & Population 2026

A note before these figures: with a population of 665, Wallace's ACS estimates come from a small number of survey responses and carry wide margins of error. Individual percentages below — particularly rates that round to 0% or 100% — are approximations, not precise measurements. See data.census.gov for the published margins of error.

Population Overview

Wallace is a small community located in South Carolina, within Marlboro County. The total population is 665. It ranks as the 318th most populous out of 474 Census-designated places in South Carolina.

Age Demographics

The median age in Wallace is 59.7 years. This is 49% higher than the state median of 40.2 years. Only 7.7% of residents are under 18, indicating fewer families with children. 10.4% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Wallace is $32,703. This is 53% lower than the state median of $69,324. It is also 59% lower than the national median of $80,734. The poverty rate stands at 14.4%. This is 3% higher than the state poverty rate of 14.1%. The unemployment rate is 3.8%. This is 23% lower than the state rate of 4.9%. The median home value is $97,600. Housing costs are 62% lower than the state median of $259,000. The home-value-to-income ratio is 3.0x. 99.1% of occupied housing units are owner-occupied. This homeownership rate is 38% higher than the state average of 71.9%.

Race & Ethnicity

The largest racial or ethnic group in Wallace is White (non-Hispanic), making up 45.9% of the population. Black or African American residents account for 39.9%. The Black or African American population is significantly higher than the state average (39.9% vs 24.6%).

Education

3.6% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 89% lower than the state rate of 32.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 70.6%.

Data Sources & Methodology

All demographic data for Wallace, South Carolina is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against South Carolina state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 474 Census-designated places in South Carolina. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.