Residential delivery area · Georgia
ZIP Code 30021: Clarkston, GA
ZIP code 30021 is in Clarkston, Georgia, entirely in DeKalb County (Census 2020 ZIP-county file). About 28,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $52,278 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Clarkston (50%) and Scottdale (11%); 39% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Clarkston · its only residential ZIP
- County
- DeKalb County
- Census places
- Clarkston (50%); Scottdale (11%) census-designated place
- Metro area
- Atlanta-Sandy Springs-Roswell, GA
- House districts
- GA-4 (86%), GA-5 (14%) 119th Congress, by share of land
- State
- Georgia
- Time zone
- Eastern
- Land area
- 3.6 sq mi · 7,769 people per sq mi
Where is ZIP code 30021?
30021 centers on 33.808°, -84.239° and covers 3.6 square miles of land plus 0.0 of water. It borders 5 ZIP codes: 30079, 30033, 30083, 30084, 30032.
The map draws ZIP code areas only. For the streets inside 30021, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 30021 compare with the rest of DeKalb County?
| Measure | 30021 | In DeKalb County | In GA |
|---|---|---|---|
| People (ACS 2020-2024) | 27,781 | 19th of 32 | 149th of 751 |
| Median household income | $52k | 27th of 28 | 374th of 476 |
| Median home value | $275k | 21st of 30 | 200th of 474 |
Its median household income is higher than in 17% of U.S. residential ZIP codes, and it is denser than 97% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 30021?
The 2020 Census counted 25,442 people in 30021; the ACS, which samples households over 2020-2024, estimates 27,781. Between the 2010 and 2020 censuses its population grew 15.7% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 27,781±3,154 (90% margin)
- 2020 Census count
- 25,442+15.7% since 2010 (21,989)
- Households
- 7,195
- Median age
- 25.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 30021?
Of the 27,781 people the ACS estimates in 30021, 40.5% are under 18 and 4.2% are 65 or older. The largest group by race and Hispanic origin is Black (not Hispanic) (62.6%), then Asian (not Hispanic) (15.7%).
- Under 1840.5%
- 18 to 6455.3%
- 65 and older4.2%
- Black, not Hispanic62.6%
- Asian, not Hispanic15.7%
- White, not Hispanic11.9%
- Hispanic or Latino5.7%
- Other or two or more4.1%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 30021 earn?
Median household income is $52,278 (ACS 2020-2024), the 27th highest of the 28 ranked ZIP codes in DeKalb County. It rose from $45,351 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $52,278
- Income per person
- $20,777
- Below the poverty line
- 29.3%
- Unemployed (of the labor force)
- 9.1%
- Adults 25+ with a bachelor's degree
- 24.5%
- Adjusted gross income per tax return, 2022
- $36,69910,030 returns; wages 88% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 30021?
FHFA's house price index for 30021, built from repeat sales and appraisals of the same homes, rose 140% from 2015 to 2025 and rose 58% from 2020 to 2025, and moved +3.3% in 2025.
- Median home value (owners' estimate)
- $275,400
- Median gross rent
- $1,346
- Homes owned by their occupants
- 25.1%
- Housing units
- 8,618
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 30021?
239 business establishments had a location in this ZIP code in 2023, 22 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade59
- Health care and social assistance31
- Other services (except public administration)28
- Real estate and rental and leasing18
- Professional, scientific, and technical services16
- Accommodation and food services16
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 30021?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 30079 | Scottdale | 4,831 | $83k | 1.7 mi |
| 30033 | Decatur | 31,310 | $112k | 2.6 mi |
| 30083 | Stone Mountain | 62,724 | $55k | 2.8 mi |
| 30084 | Tucker | 38,242 | $81k | 3.4 mi |
| 30032 | Decatur | 42,948 | $63k | 4.9 mi |
| 30072 | Pine Lake | 800 | $79k | 2.3 mi (near) |
| 30002 | Avondale Estates | 5,225 | $90k | 2.7 mi (near) |
| 30030 | Decatur | 31,756 | $127k | 3.9 mi (near) |
| 30345 | Atlanta | 24,492 | $112k | 4.0 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.