Cumberland County, Illinois
Located in Illinois, Cumberland County has a population of 10,334 residents and a median age of 43.1 years, making it the #2,461 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.1%. The median home value is $126,000, and the median household income is $73,327, which is 2% below the national median.
Demographics
Cumberland County has a population of 10,334, making it the #2,461 most populous county in the US. The median age is 43.1 years, which is 10.8% 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 Cumberland County is $73,327, ranking #953 out of 3,222 counties — 2.4% below the national median. The poverty rate is 9.1% and unemployment stands at 1.4%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Cumberland County is $126,000 (-55.3% vs national). Renters pay a median of $772/mo and the homeownership rate is 84.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Cumberland County, 19.6% of adults age 25+ hold a bachelor's degree or higher, which is 41.9% below the national average, ranking #2,079 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Cumberland County is 77.1 years. 16.2% of adults report poor or fair health and 5.0% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
16.5% of adults in Cumberland County smoke , 37.2% are obese , and 22.4% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 17.4 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
12.8% of children in Cumberland County live in poverty . The teen birth rate is 17.1 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Cumberland County is 70.3%. The mean commute time is 24.1 min, which is 12.6% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Cumberland County voted Republican with a margin of 61.8%. The vote was 18.4% Dem / 80.2% Rep. Compared to 2020, the margin shifted 2.7 toward Republicans .
Vote Share Over Time
About Cumberland County, Illinois
Cumberland County, Illinois has a total population of 10,334, making it the 2,461st most populous county in the United States. The median age in Cumberland County is 43.1 years, which is 10.8% above the national median of 38.9 years.
The median household income in Cumberland County is $73,327, which ranks #953 of 3,222 counties nationwide. This is 2.4% below the national median of $75,149. The poverty rate is 9.1%, lower than the national rate of 12.6%. The unemployment rate stands at 1.4%.
The median home value in Cumberland County is $126,000, 55.3% below the national median. Renters in Cumberland County pay a median gross rent of $772 per month. The homeownership rate is 84.2%, compared to the national rate of 64.4%.
In Cumberland County, 19.6% of residents aged 25 and older hold a bachelor's degree or higher, 41.9% below the national average of 33.7%. Health insurance coverage stands at 94.7% of the population. The average commute time for workers is 24.1 min.
Cumberland County is a community. The largest racial or ethnic group is White (non-Hispanic) at 95.0% of the population, followed by Two or More Races (4.4%).
All data for Cumberland 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.