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US ZIP Code Profile

ZIP Code 31548
Kingsland, Georgia

ZIP code 31548 is in Kingsland, located in Camden County, Georgia, within the St. Marys metro area. Its 2020 Census population was 22,359. The estimated median adjusted gross income per tax return is $47,133, and about 2% of filers report $200,000 or more.

2020 Population
22,359
Census ZCTA
County
Camden
FIPS 13039
Median income (est.)
$47,133
IRS SOI 2022
Land Area
56.775 mi²
+ 1.678 mi² water

01Location & Geography

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

Primary CityKingsland, GA
CountyCamden County (FIPS 13039)
StateGeorgia (FIPS 13)
Metro Area (MSA)St. Marys, GA Micro Area (41220)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates30.796164, -81.698235
Land / Water Area56.775 mi² land · 1.678 mi² water

02Income & Economics

Distribution of the 10,800 individual tax returns filed in 31548 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
27.1%
$25K–$50K
25.8%
$50K–$75K
17.6%
$75K–$100K
11.2%
$100K–$200K
15.8%
$200K+
2.4%
The $200,000+ bracket accounts for 12% of 31548's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($47,133) 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 31548's IRS income metrics, 2020–2022.

Median income (2021→2022)
$47,133
▲ 8.6%
Filers earning $200K+
2.4%
▲ 0.4 pt
Total filers
10,800
▲ 2.0%
GET /zipc/v2/zipcodes/31548/soi?year=… $41K 2020 $43K 2021 $47K 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 31548 ZCTA.

2000
14,886
 
2010
20,020
▲ +34.5%
2020
22,359
▲ +11.7%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number124829
City AliasesKingsland

06Frequently Asked Questions

What county is ZIP code 31548 in?

ZIP code 31548 is in Camden County, Georgia (county FIPS code 13039).

What city is ZIP code 31548?

The primary USPS city for 31548 is Kingsland, GA.

What metro area (MSA) is 31548 in?

31548 is part of the St. Marys, GA Micro Area (MSA code 41220).

What is the population of ZIP code 31548?

The 2020 Census population of 31548 was 22,359 residents.

What is the median income in ZIP code 31548?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31548 is about $47,133, 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.