ZIP Code Tabulation Area · Georgia

ZIP Code 30127: Cobb County, GA

ZIP Code 30127 (Cobb County, Georgia) has an estimated 71,626 residents in 24,431 households. The median household income is $110,904, the median home value is $358,700 and the median gross rent is $1,867/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

71,626

Margin of error ±3,117

Median household income

$110,904

Margin of error ±$3,578

Median home value

$358,700

Margin of error ±$9,167

Median gross rent

$1,867/mo

Margin of error ±$192

Median age

41.9 yrs

Margin of error ±1.7 yrs

Mean travel time to work

34.0 min

Margin of error ±2.7 min

How ZIP 30127 compares with Georgia and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 3012741.9 yrsGeorgia37.6 yrsUnited States38.9 yrs

Median household income

ZIP 30127$110,904Georgia$77,353United States$80,734

Per capita income

ZIP 30127$45,851Georgia$40,924United States$44,673

Poverty rate

ZIP 301278.1%Georgia13.4%United States12.5%

Unemployment rate

ZIP 301276.4%Georgia5.1%United States5.2%

Bachelor's degree or higher

ZIP 3012740.3%Georgia34.9%United States35.7%

Median home value

ZIP 30127$358,700Georgia$303,300United States$332,700

Median gross rent

ZIP 30127$1,867/moGeorgia$1,393/moUnited States$1,413/mo

Owner-occupied homes

ZIP 3012785.4%Georgia65.7%United States65.2%

Mean travel time to work

ZIP 3012734.0 minGeorgia28.3 minUnited States26.4 min

Worked from home

ZIP 3012719.2%Georgia15.9%United States15.1%

All figures for ZIP 30127

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 30127 — ACS 2020–2024 5-year estimates
Measure	ZIP 30127	Margin of error	Georgia	United States
Total population	71,626	±3,117	10,940,407	334,922,499
Median age	41.9 yrs	±1.7 yrs	37.6 yrs	38.9 yrs
Households	24,431	±984	4,074,366	129,227,496
Median household income	$110,904	±$3,578	$77,353	$80,734
Per capita income	$45,851	±$2,895	$40,924	$44,673
Poverty rate	8.1%	±1.9 pts	13.4%	12.5%
Unemployment rate	6.4%	±1.8 pts	5.1%	5.2%
Bachelor's degree or higher	40.3%	±1.8 pts	34.9%	35.7%
Median home value	$358,700	±$9,167	$303,300	$332,700
Median gross rent	$1,867/mo	±$192	$1,393/mo	$1,413/mo
Owner-occupied homes	85.4%	±1.8 pts	65.7%	65.2%
Mean travel time to work	34.0 min	±2.7 min	28.3 min	26.4 min
Worked from home	19.2%	±1.9 pts	15.9%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 30127
Group	ZIP 30127	Georgia	United States
White alone, not Hispanic or Latino	36.5%	49.1%	57.4%
Black or African American alone, not Hispanic or Latino	44.7%	30.7%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	0.1%	0.1%	0.5%
Asian alone, not Hispanic or Latino	1.8%	4.5%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.1%	0.2%
Some other race alone, not Hispanic or Latino	1.4%	0.6%	0.6%
Two or more races, not Hispanic or Latino	4.9%	3.9%	4.3%
Hispanic or Latino (of any race)	10.6%	11.0%	19.3%

Where ZIP 30127 is

State: Georgia
Main county: Cobb County— also overlaps Paulding County
Largest overlapping place: Powder Springs (14% of the ZIP's land area)
Land area: 51.33 sq mi· about 1,395 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Cobb County

30008 Cobb County, GA 30060 Marietta, GA 30062 Cobb County, GA 30064 Marietta, GA 30066 Cobb County, GA 30067 Marietta, GA 30068 Cobb County, GA 30080 Smyrna, GA 30082 Smyrna, GA 30101 Cobb County, GA 30106 Austell, GA 30126 Mableton, GA 30144 Kennesaw, GA 30152 Cobb County, GA 30168 Mableton, GA 30339 Vinings, GA

See every ZIP code in Georgia, or compare ZIP 30127 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.