Alexander County, Illinois
Located in Illinois, Alexander County has a population of 4,875 residents and a median age of 48.0 years, making it the #2,907 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 19.0%. The median home value is $59,800, and the median household income is $47,043, which is 37% below the national median.
Demographics
Alexander County has a population of 4,875, making it the #2,907 most populous county in the US. The median age is 48.0 years, which is 23.4% 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 Alexander County is $47,043, ranking #2,895 out of 3,222 counties — 37.4% below the national median. The poverty rate is 19.0% and unemployment stands at 6.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Alexander County is $59,800 (-78.8% vs national). Renters pay a median of $656/mo and the homeownership rate is 77.6%.
Median Home Value Trend
Rankings →Household Type
Education
In Alexander County, 12.6% of adults age 25+ hold a bachelor's degree or higher, which is 62.7% below the national average, ranking #3,065 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Alexander County is 69.7 years. 25.3% of adults report poor or fair health and 5.7% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
22.9% of adults in Alexander County smoke , 43.0% are obese , and 18.0% report excessive drinking.
Adult Smoking Trend
Safety
The homicide rate in Alexander County is 25.0 per 100,000 . Motor vehicle deaths occur at a rate of 37.5 per 100,000.
Homicide Rate Trend
Families & Children
38.8% of children in Alexander County live in poverty . The teen birth rate is 34.3 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Alexander County is 56.3%. The mean commute time is 31.0 min, which is 12.3% above the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Alexander County voted Republican with a margin of 19.2%. The vote was 39.8% Dem / 59% Rep. Compared to 2020, the margin shifted 5.0 toward Republicans .
Vote Share Over Time
About Alexander County, Illinois
Alexander County, Illinois has a total population of 4,875, making it the 2,907th most populous county in the United States. The median age in Alexander County is 48.0 years, which is 23.4% above the national median of 38.9 years.
The median household income in Alexander County is $47,043, which ranks #2,895 of 3,222 counties nationwide. This is 37.4% below the national median of $75,149. The poverty rate is 19.0%, higher than the national rate of 12.6%. The unemployment rate stands at 6.5%.
The median home value in Alexander County is $59,800, 78.8% below the national median. Renters in Alexander County pay a median gross rent of $656 per month. The homeownership rate is 77.6%, compared to the national rate of 64.4%.
In Alexander County, 12.6% of residents aged 25 and older hold a bachelor's degree or higher, 62.7% below the national average of 33.7%. Health insurance coverage stands at 90.5% of the population. The average commute time for workers is 31.0 min.
Alexander County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 62.9% of the population, followed by Black (non-Hispanic) (32.9%) and Two or More Races (3.1%).
All data for Alexander 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.