Jefferson (Greene County), Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 301, Jefferson (Greene 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

Jefferson (Greene County) is a small community located in Pennsylvania, within Greene County. The total population is 301. It ranks as the 1586th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Jefferson (Greene County) is 40.8 years. This is about the same as the state median of 40.9 years.

Economy, Income & Housing

The median household income in Jefferson (Greene County) is $74,450. This is 5% lower than the state median of $77,971. It is also 8% lower than the national median of $80,734. The poverty rate stands at 13.3%. This is 13% higher than the state poverty rate of 11.7%. The unemployment rate is 16.5%. This is 213% higher than the state rate of 5.3%. The median home value is $145,700. Housing costs are 43% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.0x, Jefferson (Greene County) is one of the most affordable housing markets in the area. 84.9% of occupied housing units are owner-occupied. This homeownership rate is 22% higher than the state average of 69.3%.

Race & Ethnicity

Jefferson (Greene County) has a predominantly White (non-Hispanic) population, comprising 91.4% of all residents. Black or African American residents account for 2.0%. The Black or African American population (2.0%) is well below the state average of 10.3%. The Asian population (0.3%) is well below the state average of 3.8%.

Education

32.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 8% 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 91.4%. Notably, 16.8% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Jefferson (Greene 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.