Effingham County, Illinois
Located in Illinois, Effingham County has a population of 34,522 residents and a median age of 40.0 years, making it the #1,351 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 10.1%. The median home value is $189,500, and the median household income is $80,404, which is 7% above the national median.
Demographics
Effingham County has a population of 34,522, making it the #1,351 most populous county in the US. The median age is 40.0 years, which is 2.8% 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 Effingham County is $80,404, ranking #568 out of 3,222 counties — 7.0% above the national median. The poverty rate is 10.1% and unemployment stands at 2.1%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Effingham County is $189,500 (-32.8% vs national). Renters pay a median of $733/mo and the homeownership rate is 78.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Effingham County, 26.9% of adults age 25+ hold a bachelor's degree or higher, which is 20.2% below the national average, ranking #1,023 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Effingham County is 77.4 years. 14.3% of adults report poor or fair health and 4.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
14.2% of adults in Effingham County smoke , 35.5% are obese , and 22.5% report excessive drinking. The drug overdose death rate is 14.6 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Effingham County is 4.6 per 100,000 and the suicide rate is 14.4 per 100,000. Motor vehicle deaths occur at a rate of 12.1 per 100,000.
Homicide Rate Trend
Families & Children
11.9% of children in Effingham County live in poverty and the infant mortality rate is 7.3 per 1,000 live births. The teen birth rate is 22.1 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Effingham County is 74.0%. The mean commute time is 19.9 min, which is 28.0% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Effingham County voted Republican with a margin of 60.3%. The vote was 19% Dem / 79.3% Rep. Compared to 2020, the margin shifted 1.2 toward Republicans .
Vote Share Over Time
About Effingham County, Illinois
Effingham County, Illinois has a total population of 34,522, making it the 1,351st most populous county in the United States. The median age in Effingham County is 40.0 years, which is 2.8% above the national median of 38.9 years.
The median household income in Effingham County is $80,404, which ranks #568 of 3,222 counties nationwide. This is 7.0% above the national median of $75,149. The poverty rate is 10.1%, lower than the national rate of 12.6%. The unemployment rate stands at 2.1%.
The median home value in Effingham County is $189,500, 32.8% below the national median. Renters in Effingham County pay a median gross rent of $733 per month. The homeownership rate is 78.2%, compared to the national rate of 64.4%.
In Effingham County, 26.9% of residents aged 25 and older hold a bachelor's degree or higher, 20.2% below the national average of 33.7%. Health insurance coverage stands at 94.7% of the population. The average commute time for workers is 19.9 min.
Effingham County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 94.2% of the population, followed by Hispanic or Latino (2.8%) and Two or More Races (1.6%).
All data for Effingham 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.