Get API Key →
US ZIP Code Profile

ZIP Code 31091
Unadilla, Georgia

ZIP code 31091 is in Unadilla, located in Dooly County, Georgia. Its 2020 Census population was 4,184. The estimated median adjusted gross income per tax return is $30,242.

2020 Population
4,184
Census ZCTA
County
Dooly
FIPS 13093
Median income (est.)
$30,242
IRS SOI 2022
Land Area
86.803 mi²
+ 1.35 mi² water

01Location & Geography

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

Primary CityUnadilla, GA
CountyDooly County (FIPS 13093)
StateGeorgia (FIPS 13)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates32.237926, -83.70453
Land / Water Area86.803 mi² land · 1.35 mi² water

02Income & Economics

Distribution of the 1,050 individual tax returns filed in 31091 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
43.8%
$25K–$50K
29.5%
$50K–$75K
10.5%
$75K–$100K
5.7%
$100K–$200K
10.5%
$200K+
0.0%
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 31091's IRS income metrics, 2020–2022.

Median income (2021→2022)
$30,242
▲ 12.2%
Filers earning $200K+
0.0%
▲ 0.0 pt
Total filers
1,050
▼ 3.7%
GET /zipc/v2/zipcodes/31091/soi?year=… $27K 2020 $27K 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 31091 ZCTA.

2000
3,870
 
2010
5,189
▲ +34.1%
2020
4,184
▼ -19.4%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortC
USPS Finance Number128954
City AliasesUnadilla, Unidilla

06Frequently Asked Questions

What county is ZIP code 31091 in?

ZIP code 31091 is in Dooly County, Georgia (county FIPS code 13093).

What city is ZIP code 31091?

The primary USPS city for 31091 is Unadilla, GA.

What is the population of ZIP code 31091?

The 2020 Census population of 31091 was 4,184 residents.

What is the median income in ZIP code 31091?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31091 is about $30,242. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.