DeKalb County, Indiana Demographics 2026

Name: DeKalb County, Indiana Demographics
Creator: U.S. Census Bureau
License: https://www.census.gov/data/developers/about/terms-of-service.html

DeKalb County, Indiana has a population of 43,807, the 35th most populous county in Indiana. The median household income is $74,331 and the median home value is $194,100. The poverty rate is 9.5%.

Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes

DeKalb County Quick Facts

Population 43,807

Median Household Income $74,331

Median Home Value $194,100

Poverty Rate 9.5%

Unemployment Rate 4.5%

Median Age 38.4 years

Homeownership Rate 82.1%

Affordability Ratio 2.6x

Bachelor's Degree+ 20.2%

High School Graduation 92.9%

Cities/Places 9

Population 43,807 35th of 92

Median Income $74,331 3% higher than state

Poverty Rate 9.5%

Unemployment 4.5%

How DeKalb County Changed

Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.

Metric	2019–2023	2020–2024	Change
Population	43,584	43,807	+0.5%
Median household income	$70,080	$74,331	+6.1%
Median home value	$177,900	$194,100	+9.1%

Median Household Income

DeKalb

$74,331

$71,957

National

$80,734

Median Home Value

DeKalb

$194,100

$218,200

National

$332,700

Economy & Housing

Household Income Distribution

Under $25K 12.8%

$25K-$50K 20.6%

$50K-$100K 34.0%

$100K+ 32.5%

Detailed income brackets

Under $10K

4.2%

$10K-$15K

2.8%

$15K-$20K

3.1%

$20K-$25K

2.7%

$25K-$30K

3.7%

$30K-$35K

4.0%

$35K-$40K

3.8%

$40K-$45K

4.8%

$45K-$50K

4.4%

$50K-$60K

7.3%

$60K-$75K

9.4%

$75K-$100K

17.2%

$100K-$125K

9.6%

$125K-$150K

8.9%

$150K-$200K

8.6%

$200K+

5.4%

Employment

4.5% Unemployment Rate State: 4.3%|National: 5.2%

66.4% Labor Force Participation

Housing Overview

Owner 82.1%

Renter 17.9%

Affordability Index Very Affordable

2.6x home value to income ratio

Median gross rent $861/mo 13.9% of median household income annually

People & Demographics

Age Distribution

Under 18

24.1%

18-34

20.5%

35-54

24.6%

55-74

24.0%

75+

6.9%

Race & Ethnicity

Diversity Index

Very Low Diversity

A less diverse community where one racial or ethnic group represents a large majority.

State average: 41 | National average: 61

Education

Educational Attainment (Adults 25+)

Cities & Places in DeKalb County

City	Population	Median Income	Poverty	Home Value
Auburn	13,565	$68,750	9.8%	$190,800
Garrett	6,642	$64,179	15.3%	$154,200
Butler	2,660	$54,688	19.3%	$107,700
Waterloo	2,073	$67,083	12.5%	$104,600
Hamilton	1,939	$69,761	7.3%	$298,200
Ashley	1,230	$49,091	11.1%	$132,100
Altona	415	$64,237	2.6%	$114,600
St. Joe	411	$55,000	12.7%	$87,100
Corunna	128	$57,500	6.3%	$85,000

Explore Indiana Rankings

Cities by Population All cities ranked by size Richest Cities Ranked by median income Most Educated By bachelor's degree rate Most Affordable By housing affordability

Population Overview

DeKalb County is located in Indiana with a total population of 43,807. It is the 35th most populous county out of 92 in Indiana. The county encompasses 9 Census-designated places.

Age Demographics

The median age in DeKalb County is 38.4 years. This is about the same as the state median of 38.1 years.

Economy, Income & Housing

The median household income in DeKalb County is $74,331. This is 3% higher than the state median of $71,957. It is also 8% lower than the national median of $80,734. The poverty rate stands at 9.5%. This is 23% lower than the state poverty rate of 12.3%. The unemployment rate is 4.5%. This is 6% higher than the state rate of 4.3%. The median home value is $194,100. Housing costs are 11% lower than the state median of $218,200. With a home-value-to-income ratio of just 2.6x, DeKalb County is one of the most affordable housing markets in the area. 82.1% of occupied housing units are owner-occupied. This homeownership rate is 16% higher than the state average of 70.5%.

Race & Ethnicity

DeKalb County has a predominantly White (non-Hispanic) population, comprising 93.6% of all residents. Hispanic or Latino residents account for 3.1%. The Black or African American population (0.1%) is well below the state average of 9.1%. The Hispanic or Latino population (3.1%) is well below the state average of 8.6%. The Asian population (0.5%) is well below the state average of 2.6%.

Education

20.2% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% lower than the state rate of 29.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.9%.

Data Sources & Methodology

All figures for DeKalb County come from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates, with comparisons drawn against Indiana and national averages from the same dataset. See our methodology page for how each metric is defined, or data.census.gov for official tables with margins of error.

Frequently Asked Questions

What is the population of DeKalb County, Indiana?

DeKalb County has a population of 43,807, making it the 35th most populous county in Indiana.

What is the median income in DeKalb County?

The median household income in DeKalb County is $74,331 with a poverty rate of 9.5%.

How many cities are in DeKalb County, Indiana?

DeKalb County contains 9 Census-designated places.