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US ZIP Code Profile

ZIP Code 31537
Folkston, Georgia

ZIP code 31537 is in Folkston, located in Charlton County, Georgia. Its 2020 Census population was 10,500. The estimated median adjusted gross income per tax return is $39,080, and about 2% of filers report $200,000 or more.

2020 Population
10,500
Census ZCTA
County
Charlton
FIPS 13049
Median income (est.)
$39,080
IRS SOI 2022
Land Area
292.069 mi²
+ 1.706 mi² water

01Location & Geography

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

Primary CityFolkston, GA
CountyCharlton County (FIPS 13049)
StateGeorgia (FIPS 13)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates30.88518, -82.00503
Land / Water Area292.069 mi² land · 1.706 mi² water

02Income & Economics

Distribution of the 3,200 individual tax returns filed in 31537 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
34.7%
$25K–$50K
27.2%
$50K–$75K
15.9%
$75K–$100K
8.4%
$100K–$200K
12.2%
$200K+
1.6%
The $200,000+ bracket accounts for 12% of 31537's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($39,080) 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 31537's IRS income metrics, 2020–2022.

Median income (2021→2022)
$39,080
▲ 8.3%
Filers earning $200K+
1.6%
▲ 0.0 pt
Total filers
3,200
▲ 0.0%
GET /zipc/v2/zipcodes/31537/soi?year=… $34K 2020 $36K 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 31537 ZCTA.

2000
8,804
 
2010
10,097
▲ +14.7%
2020
10,500
▲ +4.0%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number123322
City AliasesHomeland, Folkston

06Frequently Asked Questions

What county is ZIP code 31537 in?

ZIP code 31537 is in Charlton County, Georgia (county FIPS code 13049).

What city is ZIP code 31537?

The primary USPS city for 31537 is Folkston, GA.

What is the population of ZIP code 31537?

The 2020 Census population of 31537 was 10,500 residents.

What is the median income in ZIP code 31537?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31537 is about $39,080, with around 2% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.