DeKalb County, Tennessee Age & Gender Statistics (2024)

Total Population

20,959

Median Age

41.9

Male Median

39.4

Female Median

44.1

DeKalb County, Tennessee Population Growth

Population trends in
Figure 1: Annual population growth trend for (2010–2024).

DeKalb County, Tennessee Demographic Trend

Since 2010, the population of has changed by +12.9%%.

+12.9%% Growth

DeKalb County, Tennessee Age & Gender Pyramid

Population pyramid for

Figure 2: Population distribution by age and gender for 2024.


DeKalb County, Tennessee Historical Population Data

YearMedian AgePopulation
202441.920,959
202342.220,551
202242.120,209
202142.619,875
202042.620,104
201941.119,847
201841.219,601
201740.919,380
201640.919,159
201541.019,038
201440.918,968
201340.518,875
201240.218,770
201140.218,684
201039.718,569

DeKalb County, Tennessee Age Group Breakdown (2024)

Age CohortPercentage
Under 57.3%
5–1714.4%
18–247.5%
25–3412.9%
35–5423.9%
55–6415.2%
65+18.8%

Dependency Ratios for DeKalb County, Tennessee

Total Dependency Ratio:
68.1
Youth Dependency:
36.5
Old-Age Dependency:
31.5

The dependency ratio measures dependents (ages 0-17 and 65+) per 100 working-age individuals (ages 18-64).



Age & Gender FAQs for DeKalb County, Tennessee

The median age in DeKalb County, Tennessee is 41.9 years.

According to latest Census data, the total population of DeKalb County, Tennessee is 20,959.

In DeKalb County, Tennessee, seniors (ages 65+) make up 18.8% of the population, while children under 18 represent 14.4%.

Based on historical data since 2010, the population in DeKalb County, Tennessee is aging.
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