Unionville (Chester County), Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 652, Unionville (Chester County)'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

Unionville (Chester County) is a small community located in Pennsylvania, within Chester County. The total population is 652. It ranks as the 1226th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Unionville (Chester County) is 60.7 years. This is 48% higher than the state median of 40.9 years. 26.2% 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 Unionville (Chester County) is $132,313. This is 70% higher than the state median of $77,971. It is also 64% higher than the national median of $80,734. The ACS records no residents below the poverty line in Unionville (Chester County). 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 Unionville (Chester County), which reflects the size of the sample rather than a labor market without joblessness. The median home value is $473,700. Housing costs are 86% higher than the state median of $254,500. The home-value-to-income ratio is 3.6x. 93.5% of occupied housing units are owner-occupied. This homeownership rate is 35% higher than the state average of 69.3%.

Race & Ethnicity

Unionville (Chester County) has a predominantly White (non-Hispanic) population, comprising 93.7% of all residents. Hispanic or Latino residents account for 6.3%.

Education

50.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Unionville (Chester County) in the top 10% of all cities in the state for educational attainment. This is 44% higher than the state rate of 35.2%. 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, 29.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Unionville (Chester County), Pennsylvania 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 Pennsylvania state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,991 Census-designated places in Pennsylvania. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.