Ophiem, Illinois Demographics & Population 2026

A note before these figures: with a population of 92, Ophiem'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

Ophiem is a small community located in Illinois, within Henry County. The total population is 92. It ranks as the 1343rd most populous out of 1,445 Census-designated places in Illinois.

Age Demographics

The median age in Ophiem is 37.0 years. This is 5% lower than the state median of 39.0 years. With 32.6% of the population under 18, Ophiem has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Ophiem is $42,969. This is 48% lower than the state median of $83,390. It is also 47% lower than the national median of $80,734. The poverty rate stands at 68.5%. This is 480% higher than the state poverty rate of 11.8%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The survey records no unemployed residents in Ophiem, which reflects the size of the sample rather than a labor market without joblessness. The median home value is $96,800. Housing costs are 63% lower than the state median of $263,300. With a home-value-to-income ratio of just 2.3x, Ophiem is one of the most affordable housing markets in the area. 100.0% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 67.1%.

Race & Ethnicity

The largest racial or ethnic group in Ophiem is White (non-Hispanic), making up 84.8% of the population.

Education

22.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 40% lower than the state rate of 37.9%. Nationally, 35.7% of adults hold at least a bachelor's degree. No surveyed resident aged 25 or older reported leaving school before earning a high school diploma, though a rate of exactly 100% reflects the limits of a small sample.

Data Sources & Methodology

All demographic data for Ophiem, Illinois 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 Illinois state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,445 Census-designated places in Illinois. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.