Logan County, Illinois Demographics 2026

Population Overview

Logan County is located in Illinois with a total population of 27,870. It is the 49th most populous county out of 102 in Illinois.

Age Demographics

The median age in Logan County is 40.5 years. This is 4% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Logan County is $64,188. This is 21% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 18% lower. The poverty rate stands at 13.7%. This is 17% higher than the state poverty rate of 11.7%. The unemployment rate is 4.4%. This is 24% lower than the state rate of 5.8%. The median home value is $125,900. Housing costs are 50% lower than the state median of $250,500. With a home-value-to-income ratio of just 2.0x, Logan County is one of the most affordable housing markets in the area. 69.3% of occupied housing units are owner-occupied. This homeownership rate is 4% higher than the state average of 66.8%.

Race & Ethnicity

Logan County has a predominantly White (non-Hispanic) population, comprising 86.5% of all residents. Black or African American residents account for 5.9%. The Black or African American population (5.9%) is well below the state average of 13.6%. The Hispanic or Latino population (3.3%) is well below the state average of 18.5%. The Asian population (0.4%) is well below the state average of 5.8%.

Education

19.9% of residents aged 25 and older hold a bachelor's degree or higher. This is 47% 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%.