Seneca city, Oregon Demographics & Population 2026

Population Overview

Seneca city is a small community located in Oregon. The total population is 119. It ranks as the 392nd most populous out of 419 cities and towns in Oregon.

Age Demographics

The median age in Seneca city is 58.8 years. This is 47% higher than the state median of 40.1 years. Only 5.9% of residents are under 18, indicating fewer families with children. 14.3% 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 Seneca city is $76,250. This is 5% lower than the state median of $80,426. Compared to the national median of $78,538, household income here is 3% lower. The poverty rate stands at 10.1%. This is 15% lower than the state poverty rate of 11.9%. The unemployment rate is 0.0%. This is 100% lower than the state rate of 5.4%. The median home value is $157,100. Housing costs are 65% lower than the state median of $454,200. With a home-value-to-income ratio of just 2.1x, Seneca city is one of the most affordable housing markets in the area. 73.5% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 63.4%.

Race & Ethnicity

The largest racial or ethnic group in Seneca city is White (non-Hispanic), making up 81.5% of the population. Hispanic or Latino residents account for 6.7%. The Hispanic or Latino population (6.7%) is well below the state average of 14.3%.

Education

9.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 75% lower than the state rate of 36.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 83.5%.

Data Sources & Methodology

All demographic data for Seneca city, Oregon is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Oregon state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 419 Census-designated places in Oregon. For official data, visit data.census.gov.