Massac County, Illinois
Located in Illinois, Massac County has a population of 13,865 residents and a median age of 44.7 years, making it the #2,233 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 16.3%. The median home value is $121,900, and the median household income is $65,116, which is 13% below the national median.
Demographics
Massac County has a population of 13,865, making it the #2,233 most populous county in the US. The median age is 44.7 years, which is 14.9% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Massac County is $65,116, ranking #1,624 out of 3,222 counties — 13.4% below the national median. The poverty rate is 16.3% and unemployment stands at 3.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Massac County is $121,900 (-56.8% vs national). Renters pay a median of $756/mo and the homeownership rate is 76.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Massac County, 17.0% of adults age 25+ hold a bachelor's degree or higher, which is 49.4% below the national average, ranking #2,485 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Massac County is 73.5 years. 19.3% of adults report poor or fair health and 6.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.6% of adults in Massac County smoke , 38.0% are obese , and 20.4% report excessive drinking. The drug overdose death rate is 28.9 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 20.0 per 100,000. Motor vehicle deaths occur at a rate of 18.3 per 100,000.
Suicide Rate Trend
Families & Children
30.6% of children in Massac County live in poverty . The teen birth rate is 26.0 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Massac County is 62.8%. The mean commute time is 22.6 min, which is 18.1% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Massac County voted Republican with a margin of 48.8%. The vote was 25.2% Dem / 74% Rep. Compared to 2020, the margin shifted 0.8 toward Republicans .
Vote Share Over Time
About Massac County, Illinois
Massac County, Illinois has a total population of 13,865, making it the 2,233rd most populous county in the United States. The median age in Massac County is 44.7 years, which is 14.9% above the national median of 38.9 years.
The median household income in Massac County is $65,116, which ranks #1,624 of 3,222 counties nationwide. This is 13.4% below the national median of $75,149. The poverty rate is 16.3%, higher than the national rate of 12.6%. The unemployment rate stands at 3.8%.
The median home value in Massac County is $121,900, 56.8% below the national median. Renters in Massac County pay a median gross rent of $756 per month. The homeownership rate is 76.4%, compared to the national rate of 64.4%.
In Massac County, 17.0% of residents aged 25 and older hold a bachelor's degree or higher, 49.4% below the national average of 33.7%. Health insurance coverage stands at 92.2% of the population. The average commute time for workers is 22.6 min.
Massac County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 86.3% of the population, followed by Black (non-Hispanic) (6.4%) and Two or More Races (3.9%).
All data for Massac County, Illinois comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.