Granite City city, Illinois Demographics & Population 2026

Population Overview

Granite City city is a mid-sized community located in Illinois. The total population is 26,670. It ranks as the 82nd most populous out of 1,445 cities and towns in Illinois.

Age Demographics

The median age in Granite City city is 40.1 years. This is 3% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Granite City city is $60,490. 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 16.4%. This is 40% higher 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 $99,800. Housing costs are 60% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.6x, Granite City city is one of the most affordable housing markets in the area. 71.9% of occupied housing units are owner-occupied. This homeownership rate is 8% higher than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Granite City city is White (non-Hispanic), making up 75.9% of the population. Black or African American residents account for 10.7%. The Hispanic or Latino population (7.6%) is well below the state average of 18.5%. The Asian population (1.2%) is well below the state average of 5.8%.

Education

16.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 56% 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 88.1%.

Data Sources & Methodology

All demographic data for Granite City 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.