Mound City city, Illinois Demographics & Population 2026

Population Overview

Mound City city is a small community located in Illinois. The total population is 756. It ranks as the 790th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Mound City city is 37.3 years. This is 4% lower than the state median of 38.9 years. With 30.4% of the population under 18, Mound City city has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Mound City city is $39,808. This is 51% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 49% lower. The poverty rate stands at 17.7%. This is 51% higher than the state poverty rate of 11.7%. The unemployment rate is 4.2%. This is 27% lower than the state rate of 5.8%. The median home value is $43,900. Housing costs are 82% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.1x, Mound City city is one of the most affordable housing markets in the area. 36.1% of occupied housing units are owner-occupied. This homeownership rate is 46% lower than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Mound City city is White (non-Hispanic), making up 52.6% of the population. Black or African American residents account for 43.6%. The Black or African American population is significantly higher than the state average (43.6% vs 13.6%). The Asian population (0.4%) is well below the state average of 5.8%.

Education

1.1% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 97% lower than the state rate of 37.2%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 91.3%.

Data Sources & Methodology

All demographic data for Mound City city, Illinois 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 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. For official data, visit data.census.gov.