Will County, Illinois Demographics 2026

Population Overview

Will County is located in Illinois with a total population of 698,450. It is the 4th most populous county out of 102 in Illinois.

Age Demographics

The median age in Will County is 38.9 years. This is about average than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Will County is $107,799. This is 32% higher than the state median of $81,702. Compared to the national median of $78,538, household income here is 37% higher. The poverty rate stands at 7.0%. This is 41% lower than the state poverty rate of 11.7%. The unemployment rate is 4.9%. This is 16% lower than the state rate of 5.8%. The median home value is $298,000. Housing costs are 19% higher than the state median of $250,500. With a home-value-to-income ratio of just 2.8x, Will County is one of the most affordable housing markets in the area. 82.5% of occupied housing units are owner-occupied. This homeownership rate is 23% higher than the state average of 66.8%.

Race & Ethnicity

The largest racial or ethnic group in Will County is White (non-Hispanic), making up 59.8% of the population. Hispanic or Latino residents account for 19.3%.

Education

36.5% of residents aged 25 and older hold a bachelor's degree or higher. This places Will County in the top 10% of all cities in the state for educational attainment. This is 2% 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 91.5%.