Round Lake village, Illinois Demographics & Population 2026

Population Overview

Round Lake village is a small city located in Illinois. The total population is 18,588. It ranks as the 133rd most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Round Lake village is 36.7 years. This is 6% lower than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Round Lake village is $108,965. This is 33% higher than the state median of $81,702. Compared to the national median of $78,538, household income here is 39% higher. The poverty rate stands at 9.0%. This is 23% lower than the state poverty rate of 11.7%. The unemployment rate is 6.4%. This is 11% higher than the state rate of 5.8%. The median home value is $257,400. Housing costs are 3% higher than the state median of $250,500. With a home-value-to-income ratio of just 2.4x, Round Lake village is one of the most affordable housing markets in the area. 79.4% of occupied housing units are owner-occupied. This homeownership rate is 19% higher than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Round Lake village is White (non-Hispanic), making up 46.0% of the population. Hispanic or Latino residents account for 32.1%. The Black or African American population (3.1%) is well below the state average of 13.6%. The Hispanic or Latino population is significantly higher than the state average (32.1% vs 18.5%). The Asian population is significantly higher than the state average (14.6% vs 5.8%).

Education

40.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 9% higher 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 87.5%.

Data Sources & Methodology

All demographic data for Round Lake village, 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.