Barnesville, Maryland Demographics & Population 2026

A note before these figures: with a population of 208, Barnesville'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

Barnesville is a small community located in Maryland, within Montgomery County. The total population is 208. It ranks as the 445th most populous out of 527 Census-designated places in Maryland.

Age Demographics

The median age in Barnesville is 34.3 years. This is 13% lower than the state median of 39.4 years. With 31.7% of the population under 18, Barnesville has a notably young demographic profile, suggesting a family-oriented community. 10.1% 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 Barnesville is $231,250. This is 123% higher than the state median of $103,678. It is also 186% higher than the national median of $80,734. The poverty rate stands at 3.4%. This is 64% lower than the state poverty rate of 9.4%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 0.9%. This is 81% lower than the state rate of 4.9%. The median home value is $730,300. Housing costs are 74% higher than the state median of $419,900. The home-value-to-income ratio is 3.2x. 96.9% of occupied housing units are owner-occupied. This homeownership rate is 43% higher than the state average of 67.6%.

Race & Ethnicity

The largest racial or ethnic group in Barnesville is White (non-Hispanic), making up 81.7% of the population. Hispanic or Latino residents account for 12.5%. The White (non-Hispanic) population is significantly higher than the state average (81.7% vs 46.6%). The Black or African American population (1.0%) is well below the state average of 28.9%. The Asian population (0.5%) is well below the state average of 6.5%.

Education

68.1% of residents aged 25 and older hold a bachelor's degree or higher. This places Barnesville in the top 10% of all cities in the state for educational attainment. This is 57% higher than the state rate of 43.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.1%. Notably, 31.1% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Barnesville, Maryland 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 Maryland state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 527 Census-designated places in Maryland. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.