DeKalb County, Tennessee Population 2024

21,448

DeKalb County, Tennessee's estimated 2024 population is 21,448 with a growth rate of 1.05% in the past year according to the most recent United States census data. DeKalb County, Tennessee is the 65th largest county in Tennessee. The 2010 population was 18,694 and has seen a growth of 14.73% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202922,5632231%
202822,3402231.01%
202722,1172231.02%
202621,8942231.03%
202521,6712231.04%
202421,4482231.05%
202321,2252231.06%
202221,0025022.45%
202120,5003111.54%
202020,189-220-1.08%
201920,4093641.82%
201820,0452281.15%
201719,8174032.08%
201619,4141330.69%
201519,281630.33%
201419,218710.37%
201319,1472821.49%
201218,8651120.6%
201118,753590.32%
201018,69400%
199014,3607715.67%
198013,5892,43821.86%
197011,1513773.5%
196010,774-906-7.76%
195011,680-2,908-19.93%
194014,5883752.64%
193014,213-1,157-7.53%
192015,370-64-0.41%
191015,434-1,026-6.23%
190016,4608105.18%
189015,6508375.65%
188014,8133,38829.65%
187011,4258528.06%
186010,5732,55731.9%
18508,0162,14836.61%
18405,868-16,695-73.99%
2024 Growth Rate
1.05% (223)
County Website
DeKalb County
County Seat
Smithville
2020 Population
20,189
Area
304 mi²
Density
71 people/mi²
Growth Since 2020
6.24% (1,259)
Founded
1837

Population by Race

Race
Population
Percentage (of total)
White18,36690.88%
Two or more races7643.78%
Other race5462.7%
Black or African American3501.73%
Asian1220.6%
Native American610.3%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

DeKalb County, Tennessee Population by Race

DeKalb County, Tennessee Population Pyramid 2024

DeKalb County, Tennessee Median Age

42.1

Total

39.4

Male

44.5

Female

DeKalb County, Tennessee Adults

There are 15,839 adults, (3,777 of whom are seniors) in DeKalb County, Tennessee.

DeKalb County, Tennessee Age Dependency

67.5

Age Dependency Ratio

31.3

Old Age Dependency Ratio

36.2

Child Dependency Ratio

DeKalb County, Tennessee Sex Ratio

Female9,88848.93%
Male10,32151.07%

DeKalb County, Tennessee Population by Age

DeKalb County, Tennessee Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All8,3602.3868.631.4
Married4,3362.9281.618.4
Non Family2,6921.2552.547.5
Female7952.6147.252.8
Male5373.2776.923.1

2.84

Average Family Size

2.38

Average Household Size

68.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

DeKalb County, Tennessee Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,73212.04%
Associates Degree6104.24%
Bachelors Degree2,01414%
Graduate Degree9216.4%
High School Graduate5,69439.58%
Less Than 9th Grade9886.87%
Some College2,42716.87%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

DeKalb County, Tennessee Educational Attainment by Sex (over 25)

DeKalb County, Tennessee Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White12,76910,5572,688
Hispanic1,047594117
2+ Races523391196
Other Race3031710
Black23420945
Native American29290
Asian27256

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 37.48%.

DeKalb County, Tennessee Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$52,716$59,209$48,060
Graduate Degree$62,875$93,542$47,969
High School Graduate$35,087$38,487$26,272
Less Than 9th Grade$28,370$29,538$19,738
Overall$38,409$42,628$29,912
Some College$40,422$51,798$37,026

$38,409

Average Earnings

$42,628

Average Male

$29,912

Average Female

DeKalb County, Tennessee Earnings by Educational Attainment

DeKalb County, Tennessee Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

DeKalb County, Tennessee Language

92.99% of DeKalb County, Tennessee residents speak only English, while 7.01% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 6.25% of the population.

DeKalb County, Tennessee Language

DeKalb County, Tennessee Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White17,2563,55320.59%
Hispanic1,66826115.65%
Other54323142.54%
Black30813242.86%
Multiple716446.15%

20.21%

Overall Poverty Rate

18.72%

Male Poverty Rate

21.76%

Female Poverty Rate

Poverty in DeKalb County, Tennessee

The race most likely to be in poverty in DeKalb County, Tennessee is Black, with 42.86% below the poverty level.

The race least likely to be in poverty in DeKalb County, Tennessee is Multiple, with 6.15% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.75%. Among those working part-time, it was 11.63%, and for those that did not work, the poverty rate was 32.29%.

DeKalb County, Tennessee Poverty

rate

Rate
Poverty
Less Than 9th Grade37.33%
High School16.57%
Some College10.58%
Bachelors or Greater7.31%

DeKalb County, Tennessee Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed48.66%
Male Unemployed17.37%
Female Employed6.41%
Male Employed6.26%

DeKalb County, Tennessee Poverty Rate by Employment Status and Sex

DeKalb County, Tennessee Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$62,165$78,106
Households$46,907$65,911
Married Families$71,441$-999,999,999
Non Families$25,539$38,588

mean

median

Income by Household Type

DeKalb County, Tennessee Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.9%

Overall Marriage Rate

59.2%

Male Marriage Rate

52.5%

Female Marriage Rate

DeKalb County, Tennessee Married by Age and Sex

male

female

DeKalb County, Tennessee Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

DeKalb County, Tennessee Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

DeKalb County, Tennessee Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,151

Number of Veterans

1,097

Male Veterans

54

Female Veterans

War
Veterans
Vietnam602
Second Gulf War204
First Gulf War183
Korea67
World War II5

DeKalb County, Tennessee Veterans by War

count

Age Group
Veterans
65 to 74438
75+247
55 to 64231
35 to 54138
18 to 3497

DeKalb County, Tennessee Veterans by Age

count

Name
Veterans
% of Total
White1,0517.23%
Black6525.59%
2+ Races356.1%
Hispanic131.17%

DeKalb County, Tennessee Veterans by Race

DeKalb County, Tennessee Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.76%

Veteran Poverty Rate

53.46%

Veteran Disability Rate

DeKalb County, Tennessee Veterans by Education

LaborForceParticipation

53.2%

Labor Force Participation

50.5%

Employment Rate

5%

Unemployment Rate

DeKalb County, Tennessee Employment by Age

LaborForceParticipation

DeKalb County, Tennessee Employment by Race

LaborForceParticipation

DeKalb County, Tennessee Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

65.33%

Born in DeKalb County, Tennessee

94.24%

Native Born

5.76%

Foreign Born

4.69%

Non Citizen

1.07%

Naturalized

Place of Birth

94.24% of DeKalb County, Tennessee residents were born in the United States, with 65.33% having been born in Tennessee. 4.69% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

DeKalb County, Tennessee Place of Birth

Sources