Clarkston, GA · standard
ZIP Code 30021
DeKalb County, Georgia — Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 21,989
- 2,401/sq mi
- $52,278
- Median income
- $275,400
- Median home value
- 24.5%
- Bachelor's or higher
The verdict
Clarkston pairs one of the lowest household incomes in the country with above-median home values, in a suburban-density, renter-heavy area.
- 17th pct
- household income, US ZIPs
- Top 38%
- home value, US ZIPs
- 2,401
- people per sq mi
- 25%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 30021 against every reporting US ZIP.
ZIP code 30021 is classified by USPS as a standard delivery area and covers roughly 9.2 square miles in Clarkston, DeKalb County, Georgia. The area is home to 21,989 residents, producing a population density of 2,401 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 30021 against Georgia and the nation.
On the economic side, the median household income for ZIP 30021 sits at $52,278 (26% below the Georgia average), while per-capita income is $20,777. The poverty rate stands at 29.3% and the unemployment rate at 9.0%. On housing, the median home value is $275,400 (14% above the state average) with median rent at $1,346 per month, and 25.1% of occupied units are owner-occupied, a direct signal of whether 30021 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 24.5% of adults hold a bachelor's degree or higher, the median age is 25.4, and the average commute is 36 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing DeKalb County, so you can benchmark 30021 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 30021
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 30021.
- Retail trade
Retail trade
59 establishments
- Health care and social assistance
Health care and social assistance
31 establishments
- Other services (except public administration)
Other services (except public administration)
28 establishments
- Real estate and rental and leasing 18
Real estate and rental and leasing
18 establishments
- Professional, scientific, and technical services 16
Professional, scientific, and technical services
16 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 30021, Clarkston, GA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
21,989
Population
9.2
Area (sq mi)
2,401
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 30021?
25.4
Median Age
51.9%
Male
48.1%
Female
43.2%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$52,278
Median Household Income
-26% vs state
$20,777
Per Capita Income
29.3%
Poverty Rate
9.0%
Unemployment Rate
36.4 min
Mean Commute Time
How ZIP 30021 ranks nationally
Household income vs. every US ZIP code
Median household income — the full national distribution, with this ZIP marked
$52,278 17th percentile higher than 17% of 30,318 US ZIPs
Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau — ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
8,618
Total Housing Units
7,195
Occupied Units
1,423
Vacant Units
3.86
Avg Household Size
Occupancy Type
$275,400
Median Home Value
+14% vs state
$1,346
Median Rent
1978
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-1.7%
YoY Change (2024)
263
HPI Index (2000 = 100)
+163%
Total Change Since 2000
Home values in ZIP 30021 have decreased 1.7% over the past year (2024). Since 2000, this ZIP has seen +163% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +8.9% | 169 |
| 2021 | +14.2% | 193 |
| 2022 | +18.6% | 229 |
| 2023 | +16.4% | 267 |
| 2024 | -1.7% | 263 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 239 business establishments in ZIP 30021, employing approximately 1,886 people with a combined annual payroll of $74,895,000.
239
Businesses
1,886
Employees
$74.9M
Annual Payroll
15
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Retail trade | 59 | 24.7% |
| Health care and social assistance | 31 | 13.0% |
| Other services (except public administration) | 28 | 11.7% |
| Real estate and rental and leasing | 18 | 7.5% |
| Professional, scientific, and technical services | 16 | 6.7% |
| Accommodation and food services | 16 | 6.7% |
| Construction | 15 | 6.3% |
| Administrative and support and waste management and remediation services | 13 | 5.4% |
| Transportation and warehousing | 8 | 3.4% |
| Finance and insurance | 8 | 3.4% |
| Wholesale trade | 7 | 2.9% |
| Educational services | 6 | 2.5% |
| Manufacturing | 5 | 2.1% |
| Arts, entertainment, and recreation | 5 | 2.1% |
| Information | 4 | 1.7% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 30021 vs 30079 →
ZIP 30021 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 30083
Stone Mountain (30083)
50,384 residents
- 30032
Decatur (30032)
47,222 residents
- 30084
Tucker (30084)
35,921 residents
- 30033
Decatur (30033)
30,763 residents
- 30030
Decatur (30030)
26,473 residents
- 30345
Atlanta (30345)
23,129 residents
- 30021
Clarkston (30021)
21,989 residents
- 30002 5,861
Avondale Estates (30002)
5,861 residents
- 30079 2,960
Scottdale (30079)
2,960 residents
What this shows Among its immediate neighbors, ZIP 30021 ranks #7 by population — useful context the national average alone can't give.
ZIP 30021 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 30030
Decatur (30030)
$126,830 median income
- 30345
Atlanta (30345)
$112,054 median income
- 30033
Decatur (30033)
$111,616 median income
- 30002
Avondale Estates (30002)
$89,750 median income
- 30079
Scottdale (30079)
$82,500 median income
- 30084
Tucker (30084)
$81,304 median income
- 30072
Pine Lake (30072)
$78,750 median income
- 30032
Decatur (30032)
$62,765 median income
- 30083
Stone Mountain (30083)
$55,307 median income
What this shows By household income, ZIP 30021 ranks #null of 9 neighboring ZIPs — local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 30079 | Scottdale, GA | 2,960 | 1.6 mi |
| 30072 | Pine Lake, GA | 730 | 2.2 mi |
| 30033 | Decatur, GA | 30,763 | 2.6 mi |
| 30083 | Stone Mountain, GA | 50,384 | 2.7 mi |
| 30002 | Avondale Estates, GA | 5,861 | 2.7 mi |
| 30084 | Tucker, GA | 35,921 | 3.4 mi |
| 30345 | Atlanta, GA | 23,129 | 3.9 mi |
| 30030 | Decatur, GA | 26,473 | 4.0 mi |
| 30032 | Decatur, GA | 47,222 | 5.0 mi |
| 30322 | Atlanta, GA | 2,023 | 5.1 mi |
More ZIP Codes in DeKalb County
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Frequently Asked Questions
What county is ZIP code 30021 in? ▼
What is the population of ZIP code 30021? ▼
What is the median household income in ZIP 30021? ▼
What is the average home value in ZIP 30021? ▼
What is the demographic makeup of ZIP 30021? ▼
How many businesses are in ZIP code 30021? ▼
What are the main industries in ZIP code 30021? ▼
How have home values changed in ZIP code 30021? ▼
What is the education level in ZIP code 30021? ▼
What is the average commute time in ZIP 30021? ▼
What percentage of residents own vs. rent in ZIP 30021? ▼
What is the poverty rate in ZIP code 30021? ▼
ZIP Code Research Guides
Official Data Resources for Clarkston, GA
Verify and explore additional data for this area using these official government sources.
Read our methodology to see how this data is sourced, computed, and verified.