North Irwin, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 799, North Irwin'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

North Irwin is a small community located in Pennsylvania, within Westmoreland County. The total population is 799. It ranks as the 1104th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in North Irwin is 37.6 years. This is 8% lower than the state median of 40.9 years. Only 14.0% of residents are under 18, indicating fewer families with children.

Economy, Income & Housing

The median household income in North Irwin is $49,063. This is 37% lower than the state median of $77,971. It is also 39% lower than the national median of $80,734. The poverty rate stands at 9.9%. This is 16% lower than the state poverty rate of 11.7%. The unemployment rate is 4.2%. This is 21% lower than the state rate of 5.3%. The median home value is $140,800. Housing costs are 45% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.9x, North Irwin is one of the most affordable housing markets in the area. 61.8% of occupied housing units are owner-occupied. This homeownership rate is 11% lower than the state average of 69.3%.

Race & Ethnicity

North Irwin has a predominantly White (non-Hispanic) population, comprising 93.6% of all residents. Hispanic or Latino residents account for 1.8%. The Hispanic or Latino population (1.8%) is well below the state average of 8.7%.

Education

21.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 40% 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 99.2%.

Data Sources & Methodology

All demographic data for North Irwin, 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.