Rock City village, Illinois Demographics & Population 2026

Population Overview

Rock City village is a small community located in Illinois. The total population is 378. It ranks as the 1015th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Rock City village is 32.2 years. This is 17% lower than the state median of 38.9 years. With 33.3% of the population under 18, Rock City village has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Rock City village is $70,000. This is 14% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 11% lower. The poverty rate stands at 4.5%. This is 62% lower than the state poverty rate of 11.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 3.7%. This is 37% lower than the state rate of 5.8%. The median home value is $124,000. Housing costs are 50% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.8x, Rock City village is one of the most affordable housing markets in the area. 79.2% 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 Rock City village is White (non-Hispanic), making up 74.9% of the population. Hispanic or Latino residents account for 22.8%.

Education

12.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 65% 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 93.8%.

Data Sources & Methodology

All demographic data for Rock City 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.