DeKalb County's estimated 2025 population is 21,671 with a growth rate of 1.04% in the past year according to the most recent United States census data. DeKalb County is the 65th largest county in Tennessee. The 2010 population was 18,694 and has seen a growth of 15.92% since that time.
Data after 2023 is projected based on recent change
The racial composition of DeKalb County includes 88.78% White, 4.31% other race, and smaller percentages for Black or African American, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 18,246 | 88.78% |
| Other race | 886 | 4.31% |
| Two or more races | 786 | 3.82% |
| Black or African American | 377 | 1.83% |
| Asian | 167 | 0.81% |
| Native American | 89 | 0.43% |
Married
Widowed
Divorced
Separated
Never Married
DeKalb County's average per capita income is $38,483. Household income levels show a median of $48,484. The poverty rate stands at 21.41%.
Name | Median | Mean |
|---|---|---|
| Married Families | $75,807 | - |
| Families | $63,622 | $79,956 |
| Households | $48,484 | $66,814 |
| Non Families | $27,261 | $40,582 |
Average Income
Median Household Income
Poverty Rate