Saline County, Illinois
Located in Illinois, Saline County has a population of 23,213 residents and a median age of 43.8 years, making it the #1,725 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 18.9%. The median home value is $94,300, and the median household income is $53,117, which is 29% below the national median.
Demographics
Saline County has a population of 23,213, making it the #1,725 most populous county in the US. The median age is 43.8 years, which is 12.6% 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 Saline County is $53,117, ranking #2,589 out of 3,222 counties — 29.3% below the national median. The poverty rate is 18.9% and unemployment stands at 7.7%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Saline County is $94,300 (-66.5% vs national). Renters pay a median of $726/mo and the homeownership rate is 72.5%.
Median Home Value Trend
Rankings →Household Type
Education
In Saline County, 19.6% of adults age 25+ hold a bachelor's degree or higher, which is 41.8% below the national average, ranking #2,070 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Saline County is 72.5 years. 20.0% of adults report poor or fair health and 6.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
20.3% of adults in Saline County smoke , 39.6% are obese , and 20.9% report excessive drinking. The drug overdose death rate is 30.2 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 26.2 per 100,000. Motor vehicle deaths occur at a rate of 16.3 per 100,000.
Suicide Rate Trend
Families & Children
24.3% of children in Saline County live in poverty and the infant mortality rate is 9.3 per 1,000 live births. The teen birth rate is 30.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Saline County is 59.6%. The mean commute time is 25.9 min, which is 6.0% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Saline County voted Republican with a margin of 49.1%. The vote was 24.8% Dem / 73.9% Rep. Compared to 2020, the margin shifted 1.2 toward Republicans .
Vote Share Over Time
About Saline County, Illinois
Saline County, Illinois has a total population of 23,213, making it the 1,725th most populous county in the United States. The median age in Saline County is 43.8 years, which is 12.6% above the national median of 38.9 years.
The median household income in Saline County is $53,117, which ranks #2,589 of 3,222 counties nationwide. This is 29.3% below the national median of $75,149. The poverty rate is 18.9%, higher than the national rate of 12.6%. The unemployment rate stands at 7.7%.
The median home value in Saline County is $94,300, 66.5% below the national median. Renters in Saline County pay a median gross rent of $726 per month. The homeownership rate is 72.5%, compared to the national rate of 64.4%.
In Saline County, 19.6% of residents aged 25 and older hold a bachelor's degree or higher, 41.8% below the national average of 33.7%. Health insurance coverage stands at 94.6% of the population. The average commute time for workers is 25.9 min.
Saline County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 91.3% of the population, followed by Black (non-Hispanic) (3.1%) and Two or More Races (2.6%).
All data for Saline 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.