Sinnamahoning, Pennsylvania Demographics & Population 2026

A note before these figures: with a population of 31, Sinnamahoning'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

Sinnamahoning is a small community located in Pennsylvania. The total population is 31. It ranks as the 1970th most populous out of 1,991 Census-designated places in Pennsylvania.

Age Demographics

The median age in Sinnamahoning is 61.9 years. This is 51% higher than the state median of 40.9 years. Only 6.5% of residents are under 18, indicating fewer families with children. 22.6% 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 Sinnamahoning is $131,250. This is 68% higher than the state median of $77,971. It is also 63% higher than the national median of $80,734. The ACS records no residents below the poverty line in Sinnamahoning. In a community this small the estimate rests on very few survey responses, so it should be read as an absence of measurement rather than a measured absence of poverty. The survey records no unemployed residents in Sinnamahoning, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $92,000. Housing costs are 64% lower than the state median of $254,500. With a home-value-to-income ratio of just 0.7x, Sinnamahoning is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 44% higher than the state average of 69.3%.

Race & Ethnicity

Every resident counted in Sinnamahoning was recorded as White (non-Hispanic). A figure of exactly 100.0% reflects a survey sample too small to capture the community's full composition rather than a precise measurement.

Education

0.0% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.1%.

Data Sources & Methodology

All demographic data for Sinnamahoning, 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.