Massac County, Illinois Demographics 2026

Population Overview

Massac County is located in Illinois with a total population of 13,958. It is the 75th most populous county out of 102 in Illinois.

Age Demographics

The median age in Massac County is 45.0 years. This is 16% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Massac County is $62,584. This is 23% lower than the state median of $81,702. Compared to the national median of $78,538, household income here is 20% lower. The poverty rate stands at 14.9%. This is 27% higher than the state poverty rate of 11.7%. The unemployment rate is 3.4%. This is 42% lower than the state rate of 5.8%. The median home value is $118,000. Housing costs are 53% lower than the state median of $250,500. With a home-value-to-income ratio of just 1.9x, Massac County is one of the most affordable housing markets in the area. 79.0% of occupied housing units are owner-occupied. This homeownership rate is 18% higher than the state average of 66.8%.

Race & Ethnicity

Massac County has a predominantly White (non-Hispanic) population, comprising 86.7% of all residents. Black or African American residents account for 6.2%. The Black or African American population (6.2%) is well below the state average of 13.6%. The Hispanic or Latino population (2.8%) is well below the state average of 18.5%. The Asian population (0.4%) is well below the state average of 5.8%.

Education

16.3% 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 89.3%.