DeKalb County, IN demographics:
population, income, and more

Total population
43,807
0.5% year-over-year change
Median household income
$74,331/yr
6.1% year-over-year change
Housing units
18,384
0.6% year-over-year change

Dekalb County population

How many people live in Dekalb County

Dekalb County is home to 43,807 residents, according to the most recent Census data. Gender-wise, 49.9% of Dekalb County locals are male, and 50.1% are female.

Total population
43,807
0.5% year-over-year change
Gender ratio
Male
49.9%
21,841
Female
50.1%
21,966
Value Percent YoY change
Male 21,841 49.9% 0.4%
Female 21,966 50.1% 0.6%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Dekalb County is 38, with the population distributed as follows: about 19.6% are children under 15, then 12.2% are in the 15 to 24 age group. Adults between 25 and 44 make up 25% of the population, while another 25.8% fall into the 45 to 64 bracket. Finally, around 17.4% are 65 or older.

Median age
38.4
Age breakdown
Under 15
19.6%
15 to 24
12.2%
25 to 44
25%
45 to 64
25.8%
Over 65
17.4%
Value Percent YoY change
Under 15 8,608 19.6% -0.5%
15 to 24 5,344 12.2% -0.8%
25 to 44 10,939 25% 1.5%
45 to 64 11,286 25.8% -0.7%
Over 65 7,630 17.4% 3.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Dekalb County, 98.2% of the population are US-born citizens, while 1.3% have gained naturalized citizenship. At the same time, 0.5% of residents are non-citizens. As for race, 94.8% of locals are Caucasian, 0.1% are African American and 0.6% have Asian roots. There’s also a share of 4.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
98.2%
Non-U.S.-born citizens
1.3%
Non-citizens
0.5%
Value Percent YoY change
U.S.-born citizens 43,022 98.2% 0.5%
Non-U.S.-born citizens 556 1.3% 7.3%
Non-citizens 229 0.5% -14.9%
Racial breakdown
White
94.8%
Black or African American
0.1%
American Indian and Alaska Native
0%
Asian
0.6%
Native Hawaiian and other Pacific Islander
0%
Two or more races
4.1%
Other
0.5%
Value Percent
White 41,507 94.8%
Black or African American 46 0.1%
American Indian and Alaska Native 24 0%
Asian 241 0.6%
Two or more races 1,780 4.1%
Other 209 0.5%

Households in Dekalb County

A peek inside Dekalb County households

Dekalb County has 17,096 households, with an average of 3 members in each. Of these, 69.6% are families, while the remaining 30.4% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
17,096
0.5% year-over-year change
Average people per household
3
Non-family households
5,200
Family households
11,896
Value Percent YoY change
Non-family households 5,200 30.4% 0.6%
Family households 11,896 69.6% 0.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Dekalb County

The housing landscape of Dekalb County

Dekalb County's housing consists of 18,384 units, with 78.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 1% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 7.7% of the housing landscape.

Housing units
18,384
0.6% year-over-year change
Housing types
Value Percent
1 unit, detached 14,470 78.7%
1 unit, attached 180 1%
2 units 659 3.6%
3 or 4 units 577 3.1%
5 to 9 units 346 1.9%
10 to 19 units 138 0.8%
20 to 49 units 307 1.7%
50 or more units 292 1.6%
Mobile home 1,415 7.7%
Homes built since 2020
379
34.4% year-over-year change

The age of buildings in Dekalb County

In Dekalb County, the median construction year is 1975. About 27.8% of homes were built before the 1940s, with another 3.2% going up by 1949. Most development happened in the second half of the 20th century. Then, 12.9% of homes were added from 2000 to 2009, 5.6% between 2010 and 2019, and 2.1% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 5,119 27.8% 3.2%
Built between 1940 and 1949 587 3.2% 6.5%
Built between 1950 and 1959 1,020 5.6% -3.6%
Built between 1960 and 1969 1,479 8% -8.9%
Built between 1970 and 1979 1,811 9.8% -5.1%
Built between 1980 and 1989 2,178 11.8% 4.6%
Built between 1990 and 1999 2,403 13.1% -8.8%
Built between 2000 and 2009 2,377 12.9% 9.0%
Built between 2010 and 2019 1,031 5.6% 3.1%
Built in 2020 or later 379 2.1% 34.4%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Dekalb County occupancy rates

Out of the 17,096 occupied housing units in Dekalb County, 82.1% are owner-occupied, while 17.9% are lived in by tenants. Meanwhile, 7% of all homes on the local market sit vacant.

Occupied housing units
17,096
0.5% year-over-year change
Occupancy breakdown
Renter occupied
3,067
Owner occupied
14,029
Value Percent YoY
change
Renter occupied 3,067 17.9% 1.8%
Owner occupied 14,029 82.1% 0.2%
Unoccupied housing units
7.0%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Dekalb County housing costs

Housing costs in Dekalb County come to a median of $903 per month, while tenants specifically pay a median gross rent of $861.

Median housing costs per month
$903/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Dekalb County
$861/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Dekalb County

Dekalb County education at a glance

About 48.5% of the population in Dekalb County went to high school, while 20.6% pursued college studies. Another 9.9% earned an associate degree and 13.2% hold a bachelor’s. Meanwhile, 5.5% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 786 2.4% 5.5%
High school diploma 16,137 48.5% -0.9%
College diploma 6,834 20.6% 2.5%
Associate degree 3,284 9.9% 3.9%
Bachelor's degree 4,397 13.2% 1.0%
Graduate degree 1,816 5.5% 1.4%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Dekalb County

How much people earn in Dekalb County

The average annual household income in Dekalb County was $88,977 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +4.6% change from the previous year. At the same time, the median income stood at $74,331, reflecting a +6.1% shift over the same period.

Average household income in Dekalb County
$88,977/year
4.6% year-over-year change
Median household income in Dekalb County
$74,331/year
6.1% year-over-year change

Dekalb County income by age

In Dekalb County, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $92,143. Those with someone between 45 and 64 in charge, often well established professionally, earn $80,597 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $34,345, while those led by someone over 65, many of whom may be retired, have about $46,352 in earnings. Overall, 90.5% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $34,345 -3.6%
25 - 44 $92,143 6.2%
45 - 64 $80,597 1.4%
Over 65 $46,352 7.0%
Above poverty level
38,803
Below poverty level
4,090
Value Percent YoY
change
Above poverty level 38,803 90.5% 1.3%
Below poverty level 4,090 9.5% -5.4%

Employment in Dekalb County

Workforce and job types in Dekalb County

The job market in Dekalb County is powered by 21,848 working residents, spread across a range of industries and roles. 59.9% of the working population are employed in professional or administrative positions, while 40.1% are in hands-on or service-based jobs. Also, 7.4% run their own businesses, 73.4% are employed by private companies, and 9% work in the public sector.

Workforce demographics

Working population
21,848
1.0% year-over-year change
White collar
13,090
Blue collar
8,758
Value Percent YoY change
White collar 13,090 59.9% 0.5%
Blue collar 8,758 40.1% 1.8%
Employer type
Self employees
7.4%
Private companies
73.4%
Governmental workers
9%
Not for profit companies
10.2%
Value Percent YoY change
Self employees 1,615 7.4% 3.9%
Private companies 16,032 73.4% 0.9%
Governmental workers 1,971 9% -4.2%
Not for profit companies 2,230 10.2% 4.5%
Unemployment rate
4.5%
11.3% year-over-year change

Available workforce

The unemployment rate in Dekalb County stands at 4.5%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Dekalb County

How people get around in Dekalb County

In Dekalb County, the average commute time is 21 minutes. Commuting methods vary: 92.3% of residents travel by personal vehicle and 1.1% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
21 min
2.4% year-over-year change
Means of transportation
Value Percent YoY change
Car 19,986 92.3% -0.0%
Bus or trolleybus 33 0.2% 13.8%
Motorcycle 12 0.1% -50.0%
Bicycle 72 0.3% 414.3%
Walk 244 1.1% 9.9%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Dekalb County by zipcode?

Zipcode Population Number of households Median income Average income
46705 1,972 741 $67,266 $112,333
46706 20,403 7,970 $80,965 $99,933
46710 4,506 1,695 $84,408 $92,335
46721 4,739 1,817 $68,580 $80,969
46730 1,299 467 $116,181 $123,704
46738 8,533 3,627 $57,545 $70,864
46742 3,292 1,432 $78,750 $104,698
46747 2,388 913 $75,662 $83,927
46763 1,444 531 $97,054 $107,039
46785 1,491 455 $63,250 $74,563

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FAQs about Dekalb County demographics 

What is the total population of Dekalb County?

Dekalb County has a total population of 43,807 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +0.5% compared to a year ago.

What is the gender ratio in Dekalb County?

The gender ratio in Dekalb County is as follows:
  • 49.9% males (21,841 residents)
  • 50.1% females (21,966 residents)

What is the median age in Dekalb County?

The median age in Dekalb County is 38.4.

What is the age distribution of the population in Dekalb County?

The age distribution in Dekalb County is as follows:
  • Under 15: 19.6% (8,608 residents)
  • Ages 15-24: 12.2% (5,344 residents)
  • Ages 25-44: 25% (10,939 residents)
  • Ages 45-64: 25.8% (11,286 residents)
  • Over 65: 17.4% (7,630 residents)

What is the racial and ethnic makeup of Dekalb County?

The racial and ethnic makeup of Dekalb County is as follows:
  • White: 94.8% (41,507 residents)
  • Black or African American: 0.1% (46 residents)
  • American Indian and Alaska Native: 0% (24 residents)
  • Asian: 0.6% (241 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 4.1% (1,780 residents)
  • Other: 0.5% (209 residents)

What percentage of the population in Dekalb County are U.S.-born citizens?

U.S.-born citizens represent 98.2% of the population in Dekalb County.

How many housing units are there in Dekalb County?

There are 18,384 housing units in Dekalb County, reflecting a +0.6% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Dekalb County and what is the average household size?

Dekalb County has a total of 17,096 households, with an average of 3 people in each.

What is the median household income in Dekalb County?

Dekalb County has a median household income of $74,331, representing a +6.1% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Dekalb County?

The employment rate is 95.5% in Dekalb County, with a workforce of 21,848 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 59.9% (13,090 residents)
  • Blue-collar workers: 40.1% (8,758 residents)

Places of employment:
  • Self-employed: 7.4% (1,615 residents)
  • Private companies: 73.4% (16,032 residents)
  • Governmental workers: 9% (1,971 residents)
  • Not-for-profit companies: 10.2% (2,230 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025