Troy city, Illinois Demographics & Population 2026

Population Overview

Troy city is a small city located in Illinois. The total population is 10,889. It ranks as the 211th most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Troy city is 35.8 years. This is 8% lower than the state median of 38.9 years. With 29.1% of the population under 18, Troy city has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in Troy city is $97,825. This is 20% higher than the state median of $81,702. Compared to the national median of $78,538, household income here is 25% higher. The poverty rate stands at 1.6%. This is 87% 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 2.4%. This is 58% lower than the state rate of 5.8%. The median home value is $240,800. Housing costs are 4% lower than the state median of $250,500. With a home-value-to-income ratio of just 2.5x, Troy city is one of the most affordable housing markets in the area. 67.5% of occupied housing units are owner-occupied. This homeownership rate is 1% higher than the state average of 66.8%.

Race & Ethnicity

Troy city has a predominantly White (non-Hispanic) population, comprising 90.3% of all residents. Hispanic or Latino residents account for 3.6%. The White (non-Hispanic) population is significantly higher than the state average (90.3% vs 58.8%). The Black or African American population (1.7%) is well below the state average of 13.6%. The Hispanic or Latino population (3.6%) is well below the state average of 18.5%. The Asian population (0.8%) is well below the state average of 5.8%.

Education

45.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Troy city in the top 10% of all cities in the state for educational attainment. This is 22% 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 97.4%. Notably, 15.4% of adults hold a graduate or professional degree, indicating a highly educated workforce.

Data Sources & Methodology

All demographic data for Troy 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.