Lewis, Wisconsin Demographics & Population 2026

A note before these figures: with a population of 170, Lewis'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

Lewis is a small community located in Wisconsin, within Polk County. The total population is 170. It ranks as the 708th most populous out of 808 Census-designated places in Wisconsin.

Age Demographics

The median age in Lewis is 42.5 years. This is 6% higher than the state median of 40.2 years. With 28.8% of the population under 18, Lewis has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Lewis is $111,667. This is 44% higher than the state median of $77,485. It is also 38% higher than the national median of $80,734. The poverty rate stands at 3.0%. This is 71% lower than the state poverty rate of 10.5%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The survey records no unemployed residents in Lewis, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $210,000. Housing costs are 21% lower than the state median of $266,500. With a home-value-to-income ratio of just 1.9x, Lewis is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 47% higher than the state average of 67.8%.

Race & Ethnicity

The largest racial or ethnic group in Lewis is White (non-Hispanic), making up 79.4% of the population. Black or African American residents account for 10.0%. The Black or African American population is significantly higher than the state average (10.0% vs 5.9%).

Education

53.0% of residents aged 25 and older hold a bachelor's degree or higher. This places Lewis in the top 10% of all cities in the state for educational attainment. This is 59% higher than the state rate of 33.4%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 95.7%.

Data Sources & Methodology

All demographic data for Lewis, Wisconsin 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 Wisconsin state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 808 Census-designated places in Wisconsin. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.