Mercersville, Maryland Demographics & Population 2026

A note before these figures: with a population of 220, Mercersville'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

Mercersville is a small community located in Maryland, within Washington County. The total population is 220. It ranks as the 442nd most populous out of 527 Census-designated places in Maryland.

Age Demographics

The median age in Mercersville is 58.7 years. This is 49% higher than the state median of 39.4 years. Only 12.7% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in Mercersville is $53,611. This is 48% lower than the state median of $103,678. It is also 34% lower than the national median of $80,734. The ACS records no residents below the poverty line in Mercersville. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Mercersville, which reflects the size of the sample rather than a labor market without joblessness. 70.8% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 67.6%.

Race & Ethnicity

Every resident counted in Mercersville was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

20.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 52% lower than the state rate of 43.5%. 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. Notably, 17.7% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Mercersville, 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.