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US ZIP Code Profile

ZIP Code 31510
Alma, Georgia

ZIP code 31510 is in Alma, located in Bacon County, Georgia. Its 2020 Census population was 9,893. The estimated median adjusted gross income per tax return is $36,418, and about 2% of filers report $200,000 or more.

2020 Population
9,893
Census ZCTA
County
Bacon
FIPS 13005
Median income (est.)
$36,418
IRS SOI 2022
Land Area
226.025 mi²
+ 1.528 mi² water

01Location & Geography

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

Primary CityAlma, GA
CountyBacon County (FIPS 13005)
StateGeorgia (FIPS 13)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates31.545485, -82.4407
Land / Water Area226.025 mi² land · 1.528 mi² water

02Income & Economics

Distribution of the 3,670 individual tax returns filed in 31510 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
37.1%
$25K–$50K
28.3%
$50K–$75K
13.9%
$75K–$100K
8.2%
$100K–$200K
10.3%
$200K+
2.2%
The $200,000+ bracket accounts for 15% of 31510's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($36,418) 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 31510's IRS income metrics, 2020–2022.

Median income (2021→2022)
$36,418
▲ 12.1%
Filers earning $200K+
2.2%
▲ 0.0 pt
Total filers
3,670
▼ 1.9%
GET /zipc/v2/zipcodes/31510/soi?year=… $30K 2020 $32K 2021 $36K 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 31510 ZCTA.

2000
8,878
 
2010
9,848
▲ +10.9%
2020
9,893
▲ +0.5%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number120176
City AliasesAlma, Guysie, Rockingham

06Frequently Asked Questions

What county is ZIP code 31510 in?

ZIP code 31510 is in Bacon County, Georgia (county FIPS code 13005).

What city is ZIP code 31510?

The primary USPS city for 31510 is Alma, GA.

What is the population of ZIP code 31510?

The 2020 Census population of 31510 was 9,893 residents.

What is the median income in ZIP code 31510?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31510 is about $36,418, 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.