Jamestown, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 683, Jamestown'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

Jamestown is a small community located in Pennsylvania, within Mercer County. The total population is 683. It ranks as the 1200th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Jamestown is 45.7 years. This is 12% higher than the state median of 40.9 years. 16.3% 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 Jamestown is $44,688. This is 43% lower than the state median of $77,971. It is also 45% lower than the national median of $80,734. The poverty rate stands at 14.1%. This is 20% higher than the state poverty rate of 11.7%. The unemployment rate is 7.1%. This is 35% higher than the state rate of 5.3%. The median home value is $87,600. Housing costs are 66% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.0x, Jamestown is one of the most affordable housing markets in the area. 57.5% of occupied housing units are owner-occupied. This homeownership rate is 17% lower than the state average of 69.3%.

Race & Ethnicity

Jamestown has a predominantly White (non-Hispanic) population, comprising 98.1% of all residents. Hispanic or Latino residents account for 0.9%. The Black or African American population (0.6%) is well below the state average of 10.3%. The Hispanic or Latino population (0.9%) is well below the state average of 8.7%.

Education

15.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% 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 91.6%.

Data Sources & Methodology

All demographic data for Jamestown, 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.