Grand Detour CDP, Illinois Demographics & Population 2026

Population Overview

Grand Detour CDP is a small community located in Illinois. The total population is 282. It ranks as the 1110th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Grand Detour CDP is 54.0 years. This is 39% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Grand Detour CDP is $74,141. This is 9% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 6% lower. The poverty rate stands at 4.6%. This is 61% 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 22.1%. This is 282% higher than the state rate of 5.8%. The median home value is $162,500. Housing costs are 35% lower than the state median of $250,500. With a home-value-to-income ratio of just 2.2x, Grand Detour CDP is one of the most affordable housing markets in the area. 89.9% of occupied housing units are owner-occupied. This homeownership rate is 34% higher than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Grand Detour CDP is White (non-Hispanic), making up 67.7% of the population. Hispanic or Latino residents account for 32.3%. The Hispanic or Latino population is significantly higher than the state average (32.3% vs 18.5%).

Education

29.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 22% 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 93.5%.

Data Sources & Methodology

All demographic data for Grand Detour CDP, 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.