Prairie du Rocher village, Illinois Demographics & Population 2026

Population Overview

Prairie du Rocher village is a small community located in Illinois. The total population is 432. It ranks as the 981st most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Prairie du Rocher village is 36.4 years. This is 6% lower than the state median of 38.9 years. With 28.2% of the population under 18, Prairie du Rocher village has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Prairie du Rocher village is $60,313. This is 26% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 23% lower. The poverty rate stands at 9.8%. This is 17% lower than the state poverty rate of 11.7%. The unemployment rate is 3.9%. This is 32% lower than the state rate of 5.8%. The median home value is $85,400. Housing costs are 66% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.4x, Prairie du Rocher village is one of the most affordable housing markets in the area. 83.8% of occupied housing units are owner-occupied. This homeownership rate is 25% higher than the state average of 66.8%.

Race & Ethnicity

Prairie du Rocher village has a predominantly White (non-Hispanic) population, comprising 93.1% of all residents. Hispanic or Latino residents account for 3.5%. The White (non-Hispanic) population is significantly higher than the state average (93.1% vs 58.8%). The Black or African American population (0.9%) is well below the state average of 13.6%. The Hispanic or Latino population (3.5%) is well below the state average of 18.5%.

Education

12.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 66% 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 92.8%.

Data Sources & Methodology

All demographic data for Prairie du Rocher 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.