Stillwater, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 169, Stillwater'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

Stillwater is a small community located in Pennsylvania, within Columbia County. The total population is 169. It ranks as the 1763rd most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Stillwater is 46.4 years. This is 13% higher than the state median of 40.9 years.

Economy, Income & Housing

The median household income in Stillwater is $85,000. This is 9% higher than the state median of $77,971. It is also 5% higher than the national median of $80,734. The poverty rate stands at 2.4%. This is 80% lower than the state poverty rate of 11.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Stillwater, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $186,100. Housing costs are 27% lower than the state median of $254,500. With a home-value-to-income ratio of just 2.2x, Stillwater is one of the most affordable housing markets in the area. 88.2% of occupied housing units are owner-occupied. This homeownership rate is 27% higher than the state average of 69.3%.

Race & Ethnicity

Stillwater has a predominantly White (non-Hispanic) population, comprising 95.3% of all residents. Asian residents account for 1.2%. The Asian population (1.2%) is well below the state average of 3.8%.

Education

24.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% 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 94.2%.

Data Sources & Methodology

All demographic data for Stillwater, 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.