Deemston, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 672, Deemston'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

Deemston is a small community located in Pennsylvania, within Washington County. The total population is 672. It ranks as the 1209th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Deemston is 45.9 years. This is 12% higher than the state median of 40.9 years.

Economy, Income & Housing

The median household income in Deemston is $98,750. This is 27% higher than the state median of $77,971. It is also 22% higher than the national median of $80,734. The poverty rate stands at 3.6%. This is 70% lower than the state poverty rate of 11.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.0%. This is 43% lower than the state rate of 5.3%. The median home value is $228,100. Housing costs are 10% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.3x, Deemston is one of the most affordable housing markets in the area. 96.8% of occupied housing units are owner-occupied. This homeownership rate is 40% higher than the state average of 69.3%.

Race & Ethnicity

Deemston has a predominantly White (non-Hispanic) population, comprising 94.5% of all residents. Hispanic or Latino residents account for 2.5%. The Black or African American population (0.1%) is well below the state average of 10.3%. The Hispanic or Latino population (2.5%) is well below the state average of 8.7%.

Education

30.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 12% lower than the state rate of 35.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.5%.

Data Sources & Methodology

All demographic data for Deemston, 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.