West Middlesex, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 980, West Middlesex'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

West Middlesex is a small community located in Pennsylvania, within Mercer County. The total population is 980. It ranks as the 1008th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in West Middlesex is 43.1 years. This is 5% higher than the state median of 40.9 years.

Economy, Income & Housing

The median household income in West Middlesex is $89,667. This is 15% higher than the state median of $77,971. It is also 11% higher than the national median of $80,734. The poverty rate stands at 1.3%. This is 89% 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 5.8%. This is 10% higher than the state rate of 5.3%. The median home value is $158,100. Housing costs are 38% lower than the state median of $254,500. With a home-value-to-income ratio of just 1.8x, West Middlesex is one of the most affordable housing markets in the area. 85.6% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 69.3%.

Race & Ethnicity

Every resident counted in West Middlesex was recorded as White (non-Hispanic). A figure of exactly 99.6% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

21.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% 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 93.5%.

Data Sources & Methodology

All demographic data for West Middlesex, 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.