DeKalb County, Indiana
Located in Indiana, DeKalb County has a population of 43,807 residents and a median age of 38.4 years, making it the #1,122 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 9.5%. The median home value is $194,100, and the median household income is $74,331, which is 1% below the national median.
Demographics
DeKalb County has a population of 43,807, making it the #1,122 most populous county in the US. The median age is 38.4 years, which is 1.3% below 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 DeKalb County is $74,331, ranking #883 out of 3,222 counties — 1.1% below the national median. The poverty rate is 9.5% and unemployment stands at 4.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in DeKalb County is $194,100 (-31.1% vs national). Renters pay a median of $861/mo and the homeownership rate is 82.1%.
Median Home Value Trend
Rankings →Household Type
Education
In DeKalb County, 20.2% of adults age 25+ hold a bachelor's degree or higher, which is 40.1% below the national average, ranking #1,965 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in DeKalb County is 75.8 years. 16.0% of adults report poor or fair health and 7.5% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
17.5% of adults in DeKalb County smoke , 37.5% are obese , and 18.9% report excessive drinking. The drug overdose death rate is 16.1 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 15.0 per 100,000. Motor vehicle deaths occur at a rate of 10.6 per 100,000.
Suicide Rate Trend
Families & Children
12.3% of children in DeKalb County live in poverty . The teen birth rate is 22.8 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in DeKalb County is 60.3%. The mean commute time is 23.3 min, which is 15.4% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, DeKalb County voted Republican with a margin of 47.1%. The vote was 25.6% Dem / 72.7% Rep. Compared to 2020, the margin shifted +0.1 toward Democrats .
Vote Share Over Time
About DeKalb County, Indiana
DeKalb County, Indiana has a total population of 43,807, making it the 1,122nd most populous county in the United States. The median age in DeKalb County is 38.4 years, which is 1.3% below the national median of 38.9 years.
The median household income in DeKalb County is $74,331, which ranks #883 of 3,222 counties nationwide. This is 1.1% below the national median of $75,149. The poverty rate is 9.5%, lower than the national rate of 12.6%. The unemployment rate stands at 4.5%.
The median home value in DeKalb County is $194,100, 31.1% below the national median. Renters in DeKalb County pay a median gross rent of $861 per month. The homeownership rate is 82.1%, compared to the national rate of 64.4%.
In DeKalb County, 20.2% of residents aged 25 and older hold a bachelor's degree or higher, 40.1% below the national average of 33.7%. Health insurance coverage stands at 93.5% of the population. The average commute time for workers is 23.3 min.
DeKalb County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 93.6% of the population, followed by Hispanic or Latino (3.1%) and Two or More Races (2.5%).
All data for DeKalb County, Indiana 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.