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US ZIP Code Profile

ZIP Code 30034
Decatur, Georgia

ZIP code 30034 is in Decatur, located in Dekalb County, Georgia, within the Atlanta-Sandy Springs-Roswell metro area. Its 2020 Census population was 47,450. The estimated median adjusted gross income per tax return is $33,146, and about 1% of filers report $200,000 or more.

2020 Population
47,450
Census ZCTA
County
Dekalb
FIPS 13089
Median income (est.)
$33,146
IRS SOI 2022
Land Area
16.958 mi²
+ 0.228 mi² water

01Location & Geography

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

Primary CityDecatur, 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
Coordinates33.69087, -84.24862
Land / Water Area16.958 mi² land · 0.228 mi² water

02Income & Economics

Distribution of the 21,320 individual tax returns filed in 30034 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
40.5%
$25K–$50K
29.2%
$50K–$75K
14.3%
$75K–$100K
7.5%
$100K–$200K
7.5%
$200K+
1.0%
The $200,000+ bracket accounts for 6% of 30034's total adjusted gross income, from 1% of returns — a concentration that drives the gap between the median ($33,146) 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 30034's IRS income metrics, 2020–2022.

Median income (2021→2022)
$33,146
▲ 9.8%
Filers earning $200K+
1.0%
▲ 0.1 pt
Total filers
21,320
▼ 3.2%
GET /zipc/v2/zipcodes/30034/soi?year=… $30K 2020 $30K 2021 $33K 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 30034 ZCTA.

2000
44,917
 
2010
43,113
▼ -4.0%
2020
47,450
▲ +10.1%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortB
USPS Finance Number122442
City AliasesDecatur

06Frequently Asked Questions

What county is ZIP code 30034 in?

ZIP code 30034 is in Dekalb County, Georgia (county FIPS code 13089).

What city is ZIP code 30034?

The primary USPS city for 30034 is Decatur, GA.

What metro area (MSA) is 30034 in?

30034 is part of the Atlanta-Sandy Springs-Roswell, GA Metro Area (MSA code 12060).

What is the population of ZIP code 30034?

The 2020 Census population of 30034 was 47,450 residents.

What is the median income in ZIP code 30034?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 30034 is about $33,146, 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.