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US ZIP Code Profile

ZIP Code 31087
Sparta, Georgia

ZIP code 31087 is in Sparta, located in Hancock County, Georgia, within the Milledgeville metro area. Its 2020 Census population was 8,920. The estimated median adjusted gross income per tax return is $30,478, and about 2% of filers report $200,000 or more.

2020 Population
8,920
Census ZCTA
County
Hancock
FIPS 13141
Median income (est.)
$30,478
IRS SOI 2022
Land Area
463.78 mi²
+ 8.275 mi² water

01Location & Geography

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

Primary CitySparta, GA
CountyHancock County (FIPS 13141)
StateGeorgia (FIPS 13)
Metro Area (MSA)Milledgeville, GA Micro Area (33300)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates33.25136, -83.00103
Land / Water Area463.78 mi² land · 8.275 mi² water

02Income & Economics

Distribution of the 3,290 individual tax returns filed in 31087 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
44.1%
$25K–$50K
27.1%
$50K–$75K
12.2%
$75K–$100K
5.8%
$100K–$200K
9.4%
$200K+
1.5%
The $200,000+ bracket accounts for 13% of 31087's total adjusted gross income, from 2% of returns — a concentration that drives the gap between the median ($30,478) 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 31087's IRS income metrics, 2020–2022.

Median income (2021→2022)
$30,478
▲ 6.5%
Filers earning $200K+
1.5%
▼ 0.3 pt
Total filers
3,290
▼ 1.2%
GET /zipc/v2/zipcodes/31087/soi?year=… $26K 2020 $29K 2021 $30K 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 31087 ZCTA.

2000
9,936
 
2010
9,656
▼ -2.8%
2020
8,920
▼ -7.6%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number128074
City AliasesMayfield, Sparta

06Frequently Asked Questions

What county is ZIP code 31087 in?

ZIP code 31087 is in Hancock County, Georgia (county FIPS code 13141).

What city is ZIP code 31087?

The primary USPS city for 31087 is Sparta, GA.

What metro area (MSA) is 31087 in?

31087 is part of the Milledgeville, GA Micro Area (MSA code 33300).

What is the population of ZIP code 31087?

The 2020 Census population of 31087 was 8,920 residents.

What is the median income in ZIP code 31087?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31087 is about $30,478, 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.