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US ZIP Code Profile

ZIP Code 31057
Marshallville, Georgia

ZIP code 31057 is in Marshallville, located in Macon County, Georgia. Its 2020 Census population was 1,595. The estimated median adjusted gross income per tax return is $34,375.

2020 Population
1,595
Census ZCTA
County
Macon
FIPS 13193
Median income (est.)
$34,375
IRS SOI 2022
Land Area
86.921 mi²
+ 0.909 mi² water

01Location & Geography

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

Primary CityMarshallville, GA
CountyMacon County (FIPS 13193)
StateGeorgia (FIPS 13)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates32.435, -83.93656
Land / Water Area86.921 mi² land · 0.909 mi² water

02Income & Economics

Distribution of the 680 individual tax returns filed in 31057 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
41.2%
$25K–$50K
23.5%
$50K–$75K
14.7%
$75K–$100K
8.8%
$100K–$200K
11.8%
$200K+
0.0%
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 31057's IRS income metrics, 2020–2022.

Median income (2021→2022)
$34,375
▲ 12.8%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
680
▼ 4.2%
GET /zipc/v2/zipcodes/31057/soi?year=… $26K 2020 $30K 2021 $34K 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 31057 ZCTA.

2000
2,079
 
2010
2,182
▲ +5.0%
2020
1,595
▼ -26.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number125621
City AliasesMarshallville

06Frequently Asked Questions

What county is ZIP code 31057 in?

ZIP code 31057 is in Macon County, Georgia (county FIPS code 13193).

What city is ZIP code 31057?

The primary USPS city for 31057 is Marshallville, GA.

What is the population of ZIP code 31057?

The 2020 Census population of 31057 was 1,595 residents.

What is the median income in ZIP code 31057?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31057 is about $34,375. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.