Demographics of Cobb County, Georgia

Cobb County, Georgia had 793,345 people on July 1, 2025, by the Census Bureau’s estimate: +26,960 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.

Cobb County, in four figures

793,345
Population: July 1, 2025, Vintage 2025 estimate.; +3.5%
Change since July 2020: +26,960 people.; 37.5 ±0.2
Median age: ACS 2020–⁠2024.; $102,738 ±$1,561
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.

Cobb County, Georgia's population grew 3.5% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Cobb County, Georgia'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

Cobb County, Georgia's population grew 3.5% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Cobb County, Georgia'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	766,385	100.0	100.0
2021	767,036	100.1	100.2
2022	774,481	101.1	100.7
2023	781,435	102.0	101.6
2024	788,879	102.9	102.5
2025	793,345	103.5	103.1

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Population of Cobb County, Georgia on July 1 of each year, Vintage 2025
July 1	Population	Change	Births less deaths	From abroad	From elsewhere in the country
2020	766,385	+297	+731	+77	−736
2021	767,036	+651	+3,005	+1,256	−4,097
2022	774,481	+7,445	+3,334	+5,682	−978
2023	781,435	+6,954	+3,853	+6,290	−3,159
2024	788,879	+7,444	+3,666	+9,463	−5,671
2025	793,345	+4,466	+3,710	+4,965	−4,260

Age, 2020–2024

The median age is 37.5 ±0.2: for men 36.6 ±0.2 and for women 38.5 ±0.3. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Cobb County by age, ACS 2020–2024
Age	People	Share	Georgia	United States
Under 5	43,658 ±35	5.6% ±<0.1	5.8% ±<0.1	5.6% ±<0.1
5 to 17	131,309 ±2,315	16.9% ±0.3	17.4% ±0.1	16.3% ±<0.1
18 to 24	70,401 ±1,524	9.1% ±0.2	9.5% ±0.1	9.1% ±<0.1
25 to 44	223,010 ±2,080	28.8% ±0.3	27.2% ±0.1	26.9% ±<0.1
45 to 64	201,012 ±2,078	25.9% ±0.3	25.1% ±0.1	24.8% ±<0.1
65 and over	105,818 ±2,218	13.7% ±0.3	15.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $102,738 ±$1,561, and income per person $52,646 ±$770, in 2024 dollars. The median is $77,353 ±$407 in Georgia and $80,734 ±$166 in the United States.

Households by income

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Households in Cobb County by income, ACS 2020–2024
Household income	Households	Share	Georgia	United States
Under $25,000	27,144 ±1,495	9.2% ±0.5	15.4% ±0.2	14.6% ±<0.1
$25,000 to $49,999	36,893 ±1,765	12.5% ±0.6	17.5% ±0.2	16.7% ±<0.1
$50,000 to $74,999	42,977 ±1,776	14.5% ±0.6	15.9% ±0.2	15.5% ±<0.1
$75,000 to $99,999	36,681 ±1,592	12.4% ±0.5	13.0% ±0.2	12.6% ±<0.1
$100,000 to $149,999	57,568 ±2,082	19.5% ±0.7	17.3% ±0.2	17.5% ±<0.1
$150,000 to $199,999	36,081 ±1,583	12.2% ±0.5	9.2% ±0.1	9.6% ±<0.1
$200,000 or more	58,370 ±1,677	19.7% ±0.6	11.9% ±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).

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Poverty rate in Cobb County by age, ACS 2020–2024
Age	Below poverty	Rate	Georgia	United States
All ages	66,802 ±3,871	8.7% ±0.5	13.4% ±0.2	12.5% ±0.1
Under 18	18,958 ±1,690	11.0% ±1.0	18.3% ±0.3	16.1% ±0.1
18 to 59	35,900 ±2,229	8.2% ±0.5	12.1% ±0.2	11.6% ±0.1
60 and over	11,944 ±999	7.9% ±0.7	11.5% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Cobb County, ACS 2020–2024
Measure	Cobb County	Georgia	United States
Housing units	314,104 ±207	4,541,835 ±1,384	143,775,355 ±10,234
Occupied	94.1% ±0.4	89.7% ±0.2	89.9% ±0.1
Vacant	5.9% ±0.4	10.3% ±0.2	10.1% ±0.1
Owner occupied	67.0% ±0.7	65.7% ±0.4	65.2% ±0.3
Renter occupied	33.0% ±0.8	34.3% ±0.2	34.8% ±0.1
Median home value	$407,200 ±$4,795	$303,300 ±$1,171	$332,700 ±$236
Median gross rent	$1,730 ±$15	$1,393 ±$6	$1,413 ±$2
Median year built	1990 ±1	1992 ±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

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People in Cobb County by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Georgia	United States
Hispanic or Latino	116,854 ±0	15.1% ±<0.1	11.0% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	364,994 ±2,029	47.1% ±0.3	49.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	204,510 ±1,955	26.4% ±0.3	30.7% ±0.1	11.9% ±<0.1
Asian alone, not Hispanic	42,241 ±896	5.4% ±0.1	4.5% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	501 ±129	0.1% ±<0.1	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	241 ±87	< 0.1% ±<0.1	0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	7,081 ±1,462	0.9% ±0.2	0.6% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	38,786 ±2,557	5.0% ±0.3	3.9% ±0.1	4.3% ±<0.1

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).

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People in Cobb County by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Georgia	United States
Born in the state	310,838 ±5,206	40.1% ±0.7	53.4% ±0.2	57.3% ±<0.1
Born in another state	322,915 ±5,169	41.7% ±0.7	33.8% ±0.2	26.9% ±<0.1
Born a citizen outside the states	13,462 ±1,414	1.7% ±0.2	1.6% ±<0.1	1.7% ±<0.1
Born abroad	127,993 ±3,499	16.5% ±0.5	11.2% ±0.1	14.1% ±<0.1
Naturalized citizens	61,640 ±2,591	8.0% ±0.3	5.4% ±0.1	7.4% ±<0.1
Not citizens	66,353 ±2,660	8.6% ±0.3	5.8% ±0.1	6.8% ±<0.1

Cobb County among the counties of Georgia

3rd of 159 by population, July 2025. Every one is listed on the Georgia page.

Counties of Georgia near Cobb County in population, July 2025
County	July 2025	Change since 2020
Fulton County	1,098,791	+2.7%
Gwinnett County	1,018,099	+6.2%
Cobb County	793,345	+3.5%
DeKalb County	774,394	+1.3%
Chatham County	311,855	+5.7%
Cherokee County	299,273	+11.6%
Clayton County	297,471	−0.6%
Forsyth County	282,805	+11.8%

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