Seneca CDP, Wisconsin Demographics & Population 2026

Population Overview

Seneca CDP is a small community located in Wisconsin. The total population is 336. It ranks as the 600th most populous out of 807 cities and towns in Wisconsin.

Age Demographics

The median age in Seneca CDP is 37.1 years. This is 7% lower than the state median of 40.1 years.

Economy, Income & Housing

The median household income in Seneca CDP is $59,013. This is 22% lower than the state median of $75,670. Compared to the national median of $78,538, household income here is 25% lower. The poverty rate stands at 2.7%. This is 75% lower than the state poverty rate of 10.6%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.3%. This is 32% higher than the state rate of 3.3%. The median home value is $131,300. Housing costs are 47% lower than the state median of $247,400. With a home-value-to-income ratio of just 2.2x, Seneca CDP is one of the most affordable housing markets in the area. 91.9% of occupied housing units are owner-occupied. This homeownership rate is 35% higher than the state average of 67.9%.

Race & Ethnicity

Seneca CDP has a predominantly White (non-Hispanic) population, comprising 96.1% of all residents. Hispanic or Latino residents account for 3.3%. The Hispanic or Latino population (3.3%) is well below the state average of 7.8%.

Education

30.4% of residents aged 25 and older hold a bachelor's degree or higher. This is 7% lower than the state rate of 32.8%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 94.5%.

Data Sources & Methodology

All demographic data for Seneca CDP, Wisconsin 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 Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 807 Census-designated places in Wisconsin. For official data, visit data.census.gov.