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US ZIP Code Profile

ZIP Code 31820
Midland, Georgia

ZIP code 31820 is in Midland, located in Muscogee County, Georgia, within the Columbus metro area. Its 2020 Census population was 12,697. The estimated median adjusted gross income per tax return is $72,701, and about 11% of filers report $200,000 or more.

2020 Population
12,697
Census ZCTA
County
Muscogee
FIPS 13215
Median income (est.)
$72,701
IRS SOI 2022
Land Area
39.973 mi²
+ 0.334 mi² water

01Location & Geography

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

Primary CityMidland, GA
CountyMuscogee County (FIPS 13215)
StateGeorgia (FIPS 13)
Metro Area (MSA)Columbus, GA-AL Metro Area (17980)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates32.579414, -84.824684
Land / Water Area39.973 mi² land · 0.334 mi² water

02Income & Economics

Distribution of the 5,960 individual tax returns filed in 31820 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
20.1%
$25K–$50K
16.6%
$50K–$75K
14.6%
$75K–$100K
11.6%
$100K–$200K
26.5%
$200K+
10.6%
The $200,000+ bracket accounts for 35% of 31820's total adjusted gross income, from 11% of returns — a concentration that drives the gap between the median ($72,701) 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 31820's IRS income metrics, 2020–2022.

Median income (2021→2022)
$72,701
▲ 3.9%
Filers earning $200K+
10.6%
▲ 0.6 pt
Total filers
5,960
▲ 2.4%
GET /zipc/v2/zipcodes/31820/soi?year=… $67K 2020 $70K 2021 $73K 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 31820 ZCTA.

2000
5,013
 
2010
8,473
▲ +69.0%
2020
12,697
▲ +49.9%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number125841
City AliasesMidland

06Frequently Asked Questions

What county is ZIP code 31820 in?

ZIP code 31820 is in Muscogee County, Georgia (county FIPS code 13215).

What city is ZIP code 31820?

The primary USPS city for 31820 is Midland, GA.

What metro area (MSA) is 31820 in?

31820 is part of the Columbus, GA-AL Metro Area (MSA code 17980).

What is the population of ZIP code 31820?

The 2020 Census population of 31820 was 12,697 residents.

What is the median income in ZIP code 31820?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31820 is about $72,701, with around 11% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.