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US ZIP Code Profile

ZIP Code 30021
Clarkston, Georgia

ZIP code 30021 is in Clarkston, located in Dekalb County, Georgia, within the Atlanta-Sandy Springs-Roswell metro area. Its 2020 Census population was 25,442. The estimated median adjusted gross income per tax return is $29,328, and about 1% of filers report $200,000 or more.

2020 Population
25,442
Census ZCTA
County
Dekalb
FIPS 13089
Median income (est.)
$29,328
IRS SOI 2022
Land Area
3.535 mi²
+ 0.016 mi² water

01Location & Geography

Authoritative geographic identifiers from the U.S. Census Bureau, ANSI, and FIPS standards.

Primary CityClarkston, GA
CountyDekalb County (FIPS 13089)
StateGeorgia (FIPS 13)
Metro Area (MSA)Atlanta-Sandy Springs-Roswell, GA Metro Area (12060)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates33.80693, -84.23759
Land / Water Area3.535 mi² land · 0.016 mi² water

02Income & Economics

Distribution of the 10,030 individual tax returns filed in 30021 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
43.8%
$25K–$50K
36.0%
$50K–$75K
11.4%
$75K–$100K
4.4%
$100K–$200K
3.8%
$200K+
0.7%
The $200,000+ bracket accounts for 5% of 30021's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($29,328) and the average.
Estimated median = median adjusted gross income per tax return, interpolated from IRS SOI brackets. Differs from U.S. Census household income.

03Income Over Time

Year-over-year change in 30021's IRS income metrics, 2020–2022.

Median income (2021→2022)
$29,328
▲ 2.9%
Filers earning $200K+
0.7%
▲ 0.0 pt
Total filers
10,030
▼ 0.6%
GET /zipc/v2/zipcodes/30021/soi?year=… $28K 2020 $28K 2021 $29K 2022
Median = adjusted gross income per return, interpolated from IRS SOI brackets. Figures are nominal (not inflation-adjusted).

04Population Trend

Decennial U.S. Census population for the 30021 ZCTA.

2000
24,374
 
2010
21,989
▼ -9.8%
2020
25,442
▲ +15.7%

05Nearby ZIP Codes — Live Radius Search

Drag the slider to filter ZIP codes by distance from 30021. Powered by the same radius endpoint developers call from the API.

GET /zipc/v2/radius

ZIP codes within range of 30021

Clarkston and its immediate neighbors, sorted by distance.

3 mi
GET /zipc/v2/distance

Distance from 30021 to any ZIP

Enter a 5-digit ZIP to calculate the distance.

06USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number121727
City AliasesClarkston

07Frequently Asked Questions

What county is ZIP code 30021 in?

ZIP code 30021 is in Dekalb County, Georgia (county FIPS code 13089).

What city is ZIP code 30021?

The primary USPS city for 30021 is Clarkston, GA.

What metro area (MSA) is 30021 in?

30021 is part of the Atlanta-Sandy Springs-Roswell, GA Metro Area (MSA code 12060).

What is the population of ZIP code 30021?

The 2020 Census population of 30021 was 25,442 residents.

What is the median income in ZIP code 30021?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 30021 is about $29,328, with around 1% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.