Tazewell County, Illinois Demographics 2026

Population Overview

Tazewell County is located in Illinois with a total population of 130,555. It is the 16th most populous county out of 102 in Illinois.

Age Demographics

The median age in Tazewell County is 41.7 years. This is 7% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Tazewell County is $76,704. This is 6% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 2% lower. The poverty rate stands at 8.7%. This is 26% lower than the state poverty rate of 11.7%. The unemployment rate is 3.9%. This is 33% lower than the state rate of 5.8%. The median home value is $164,500. Housing costs are 34% lower than the state median of $250,500. With a home-value-to-income ratio of just 2.1x, Tazewell County is one of the most affordable housing markets in the area. 77.5% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 66.8%.

Race & Ethnicity

Tazewell County has a predominantly White (non-Hispanic) population, comprising 92.6% of all residents. Hispanic or Latino residents account for 2.6%. The White (non-Hispanic) population is significantly higher than the state average (92.6% vs 58.8%). The Black or African American population (1.4%) is well below the state average of 13.6%. The Hispanic or Latino population (2.6%) is well below the state average of 18.5%. The Asian population (1.0%) is well below the state average of 5.8%.

Education

28.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 24% 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 94.0%.