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US ZIP Code Profile

ZIP Code 30204
Barnesville, Georgia

ZIP code 30204 is in Barnesville, located in Lamar County, Georgia, within the Atlanta-Sandy Springs-Roswell metro area. Its 2020 Census population was 12,816. The estimated median adjusted gross income per tax return is $38,871, and about 3% of filers report $200,000 or more.

2020 Population
12,816
Census ZCTA
County
Lamar
FIPS 13171
Median income (est.)
$38,871
IRS SOI 2022
Land Area
124.895 mi²
+ 1.189 mi² water

01Location & Geography

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

Primary CityBarnesville, GA
CountyLamar County (FIPS 13171)
StateGeorgia (FIPS 13)
Metro Area (MSA)Atlanta-Sandy Springs-Roswell, GA Metro Area (12060)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates33.05621, -84.12173
Land / Water Area124.895 mi² land · 1.189 mi² water

02Income & Economics

Distribution of the 5,540 individual tax returns filed in 30204 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
34.5%
$25K–$50K
28.0%
$50K–$75K
14.3%
$75K–$100K
9.4%
$100K–$200K
11.2%
$200K+
2.7%
The $200,000+ bracket accounts for 23% of 30204's total adjusted gross income, from 3% of returns — a concentration that drives the gap between the median ($38,871) 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 30204's IRS income metrics, 2020–2022.

Median income (2021→2022)
$38,871
▲ 10.3%
Filers earning $200K+
2.7%
▲ 0.2 pt
Total filers
5,540
▲ 0.4%
GET /zipc/v2/zipcodes/30204/soi?year=… $33K 2020 $35K 2021 $39K 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 30204 ZCTA.

2000
12,240
 
2010
13,493
▲ +10.2%
2020
12,816
▼ -5.0%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number120616
City AliasesBarnesville, Aldora

06Frequently Asked Questions

What county is ZIP code 30204 in?

ZIP code 30204 is in Lamar County, Georgia (county FIPS code 13171).

What city is ZIP code 30204?

The primary USPS city for 30204 is Barnesville, GA.

What metro area (MSA) is 30204 in?

30204 is part of the Atlanta-Sandy Springs-Roswell, GA Metro Area (MSA code 12060).

What is the population of ZIP code 30204?

The 2020 Census population of 30204 was 12,816 residents.

What is the median income in ZIP code 30204?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 30204 is about $38,871, with around 3% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.