Demographics of DeKalb County, Alabama

DeKalb County, Alabama had 74,085 people on July 1, 2025, by the Census Bureau’s estimate: +2,423 since July 2020. Age, income, poverty, housing and origin below come from the American Community Survey, averaged over 2020–2024, each with its margin of error.

DeKalb County, in four figures

74,085
Population: July 1, 2025, Vintage 2025 estimate.; +3.4%
Change since July 2020: +2,423 people.; 39.5 ±0.4
Median age: ACS 2020–⁠2024.; $51,204 ±$2,508
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. Each year's change is births less deaths, net moves from abroad and net moves from elsewhere in the country, with the Bureau's small residual. The 2020 row's components run 3 months, from the April census to July 1.

DeKalb County, Alabama's population grew 3.4% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of DeKalb County, Alabama's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — counties and Puerto Rico municipios, with components of change

About this chart

The figures

DeKalb County, Alabama's population grew 3.4% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of DeKalb County, Alabama's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	71,662	100.0	100.0
2021	71,878	100.3	100.2
2022	72,064	100.6	100.7
2023	72,633	101.4	101.6
2024	73,581	102.7	102.5
2025	74,085	103.4	103.1

3 more columns on a wider screen

Population of DeKalb County, Alabama on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	71,662	+42	−35	+4	+49
2021	71,878	+216	−248	+35	+372
2022	72,064	+186	−297	+168	+356
2023	72,633	+569	−95	+171	+496
2024	73,581	+948	−17	+534	+438
2025	74,085	+504	−14	+210	+306

Age, 2020–2024

The median age is 39.5 ±0.4: for men 38.6 ±0.7 and for women 40.1 ±0.4. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

2 more columns on a wider screen

People in DeKalb County by age, ACS 2020–2024
Age	People	Share	Alabama	United States
Under 5	4,212 ±43	5.8% ±0.1	5.8% ±<0.1	5.6% ±<0.1
5 to 17	13,141 ±708	18.2% ±1.0	16.5% ±0.1	16.3% ±<0.1
18 to 24	6,178 ±526	8.5% ±0.7	9.5% ±0.1	9.1% ±<0.1
25 to 44	17,372 ±563	24.0% ±0.8	25.3% ±0.1	26.9% ±<0.1
45 to 64	18,618 ±790	25.8% ±1.1	25.2% ±0.1	24.8% ±<0.1
65 and over	12,748 ±665	17.6% ±0.9	17.8% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $51,204 ±$2,508, and income per person $26,490 ±$949, in 2024 dollars. The median is $63,999 ±$399 in Alabama and $80,734 ±$166 in the United States.

Households by income

2 more columns on a wider screen

Households in DeKalb County by income, ACS 2020–2024
Household income	Households	Share	Alabama	United States
Under $25,000	6,371 ±589	24.3% ±2.2	19.7% ±0.3	14.6% ±<0.1
$25,000 to $49,999	6,431 ±640	24.6% ±2.4	20.3% ±0.3	16.7% ±<0.1
$50,000 to $74,999	4,688 ±494	17.9% ±1.9	16.7% ±0.2	15.5% ±<0.1
$75,000 to $99,999	3,250 ±407	12.4% ±1.5	12.7% ±0.2	12.6% ±<0.1
$100,000 to $149,999	3,590 ±416	13.7% ±1.6	15.5% ±0.2	17.5% ±<0.1
$150,000 to $199,999	1,091 ±214	4.2% ±0.8	7.4% ±0.2	9.6% ±<0.1
$200,000 or more	760 ±151	2.9% ±0.6	7.8% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

2 more columns on a wider screen

Poverty rate in DeKalb County by age, ACS 2020–2024
Age	Below poverty	Rate	Alabama	United States
All ages	15,894 ±1,357	22.4% ±1.9	15.6% ±0.2	12.5% ±0.1
Under 18	5,574 ±676	33.0% ±3.5	21.3% ±0.4	16.1% ±0.1
18 to 59	7,847 ±689	21.3% ±1.8	14.7% ±0.2	11.6% ±0.1
60 and over	2,473 ±418	14.3% ±2.4	12.4% ±0.2	11.0% ±<0.1

Housing, 2020–2024

1 more column on a wider screen

Housing in DeKalb County, ACS 2020–2024
Measure	DeKalb County	Alabama	United States
Housing units	30,963 ±79	2,337,265 ±430	143,775,355 ±10,234
Occupied	84.6% ±1.5	85.5% ±0.3	89.9% ±0.1
Vacant	15.4% ±1.5	14.5% ±0.3	10.1% ±0.1
Owner occupied	78.3% ±1.7	70.2% ±0.4	65.2% ±0.3
Renter occupied	21.7% ±1.9	29.8% ±0.3	34.8% ±0.1
Median home value	$152,700 ±$5,889	$209,900 ±$1,076	$332,700 ±$236
Median gross rent	$693 ±$25	$1,007 ±$8	$1,413 ±$2
Median year built	1984 ±2	1986 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

2 more columns on a wider screen

People in DeKalb County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Alabama	United States
Hispanic or Latino	12,382 ±0	17.1% ±<0.1	5.6% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	55,620 ±236	77.0% ±0.3	63.4% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	975 ±112	1.3% ±0.2	25.6% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	136 ±63	0.2% ±0.1	1.4% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	291 ±121	0.4% ±0.2	0.3% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 15	0% to < 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	412 ±202	0.6% ±0.3	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	2,447 ±225	3.4% ±0.3	3.3% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

2 more columns on a wider screen

People in DeKalb County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Alabama	United States
Born in the state	49,071 ±1,300	67.9% ±1.8	67.5% ±0.2	57.3% ±<0.1
Born in another state	17,177 ±1,346	23.8% ±1.9	27.6% ±0.2	26.9% ±<0.1
Born a citizen outside the states	364 ±170	0.5% ±0.2	1.0% ±<0.1	1.7% ±<0.1
Born abroad	5,657 ±660	7.8% ±0.9	4.0% ±0.1	14.1% ±<0.1
Naturalized citizens	1,126 ±421	1.6% ±0.6	1.6% ±0.1	7.4% ±<0.1
Not citizens	4,531 ±541	6.3% ±0.7	2.4% ±0.1	6.8% ±<0.1

DeKalb County among the counties of Alabama

20th of 67 by population, July 2025. Every one is listed on the Alabama page.

Counties of Alabama near DeKalb County in population, July 2025
County	July 2025	Change since 2020
St. Clair County	98,206	+7.1%
Lauderdale County	97,135	+3.3%
Cullman County	94,009	+6.7%
Elmore County	91,577	+4.2%
Talladega County	81,603	+0.3%
DeKalb County	74,085	+3.4%
Walker County	65,140	> −0.1%
Autauga County	61,920	+5.1%
Blount County	60,156	+1.8%
Colbert County	59,474	+3.8%
Russell County	58,898	−0.6%

Elsewhere on the site

Sources

Census Bureau population estimates — counties and Puerto Rico municipios, with components of change — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026