Seneca, WI population, income and ZIP codes

Seneca CDP is a very small community in Wisconsin, with 336 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #600 of 807 ranked by population — larger than 25% of them. The median age here is 37.1 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Seneca CDP earn a median of $59,013 a year, 24.9% below the national figure of $78,538 and 20% below the $73,880 median for the 395 Wisconsin cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 2.7% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Seneca CDP is valued at $131,300, 56.7% below the national figure and 38% below the $211,900 peer median, while median gross rent runs $920 a month, 34.6% below the national figure, or roughly $11,040 across a full year. A household on the local median income would put about 18.7% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.2×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 91.9% of occupied homes are owner-occupied versus 65% nationally, an owner-dominated market where rental listings are scarce and rent medians rest on a thin sample. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

With 336 residents, a handful of survey responses moves every median on this page. Compare Seneca CDP against its county rather than against national figures.

Every value on this page is published directly by the Census for this area — nothing is modelled or interpolated. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.