Ulmer, South Carolina Demographics & Population 2026

A note before these figures: with a population of 190, Ulmer'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

Ulmer is a small community located in South Carolina, within Allendale County. The total population is 190. It ranks as the 414th most populous out of 474 Census-designated places in South Carolina.

Age Demographics

The median age in Ulmer is 40.0 years. This is about the same as the state median of 40.2 years. With 46.3% of the population under 18, Ulmer has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Ulmer is $90,192. This is 30% higher than the state median of $69,324. It is also 12% higher than the national median of $80,734. The poverty rate stands at 2.6%. This is 81% lower than the state poverty rate of 14.1%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.2%. This is 15% lower than the state rate of 4.9%. The median home value is $161,800. Housing costs are 38% lower than the state median of $259,000. With a home-value-to-income ratio of just 1.8x, Ulmer is one of the most affordable housing markets in the area. 80.0% of occupied housing units are owner-occupied. This homeownership rate is 11% higher than the state average of 71.9%.

Race & Ethnicity

Ulmer has a predominantly White (non-Hispanic) population, comprising 90.0% of all residents. Black or African American residents account for 10.0%. The Black or African American population (10.0%) is well below the state average of 24.6%.

Education

50.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Ulmer in the top 10% of all cities in the state for educational attainment. This is 56% higher 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 98.0%. Notably, 33.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Ulmer, 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.