Islandton, South Carolina Demographics & Population 2026

A note before these figures: with a population of 56, Islandton'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

Islandton is a small community located in South Carolina, within Colleton County. The total population is 56. It ranks as the 461st most populous out of 474 Census-designated places in South Carolina.

Age Demographics

The median age in Islandton is 70.1 years. This is 74% higher than the state median of 40.2 years. Only 12.5% of residents are under 18, indicating fewer families with children. 32.1% 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 Islandton is $26,458. This is 62% lower than the state median of $69,324. It is also 67% lower than the national median of $80,734. The poverty rate stands at 32.1%. This is 128% higher than the state poverty rate of 14.1%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 36.4%. This is 644% higher than the state rate of 4.9%. 51.3% of occupied housing units are owner-occupied. This homeownership rate is 29% lower than the state average of 71.9%.

Race & Ethnicity

The largest racial or ethnic group in Islandton is White (non-Hispanic), making up 67.9% of the population. Black or African American residents account for 32.1%.

Education

32.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 1% higher than the state rate of 32.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Islandton, 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.