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US ZIP Code Profile

ZIP Code 31220
Macon, Georgia

ZIP code 31220 is in Macon, located in Bibb County, Georgia, within the Macon-Bibb County metro area. Its 2020 Census population was 14,984. The estimated median adjusted gross income per tax return is $43,966, and about 7% of filers report $200,000 or more.

2020 Population
14,984
Census ZCTA
County
Bibb
FIPS 13021
Median income (est.)
$43,966
IRS SOI 2022
Land Area
47.497 mi²
+ 2.626 mi² water

01Location & Geography

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

Primary CityMacon, GA
CountyBibb County (FIPS 13021)
StateGeorgia (FIPS 13)
Metro Area (MSA)Macon-Bibb County, GA Metro Area (31420)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates32.870853, -83.809
Land / Water Area47.497 mi² land · 2.626 mi² water

02Income & Economics

Distribution of the 6,760 individual tax returns filed in 31220 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
30.5%
$25K–$50K
25.7%
$50K–$75K
14.5%
$75K–$100K
9.2%
$100K–$200K
13.6%
$200K+
6.5%
The $200,000+ bracket accounts for 39% of 31220's total adjusted gross income, from 7% of returns — a concentration that drives the gap between the median ($43,966) 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 31220's IRS income metrics, 2020–2022.

Median income (2021→2022)
$43,966
▲ 6.4%
Filers earning $200K+
6.5%
▲ 0.7 pt
Total filers
6,760
▼ 1.2%
GET /zipc/v2/zipcodes/31220/soi?year=… $40K 2020 $41K 2021 $44K 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 31220 ZCTA.

2000
11,279
 
2010
13,839
▲ +22.7%
2020
14,984
▲ +8.3%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number125489
City AliasesMacon

06Frequently Asked Questions

What county is ZIP code 31220 in?

ZIP code 31220 is in Bibb County, Georgia (county FIPS code 13021).

What city is ZIP code 31220?

The primary USPS city for 31220 is Macon, GA.

What metro area (MSA) is 31220 in?

31220 is part of the Macon-Bibb County, GA Metro Area (MSA code 31420).

What is the population of ZIP code 31220?

The 2020 Census population of 31220 was 14,984 residents.

What is the median income in ZIP code 31220?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31220 is about $43,966, with around 7% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.