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US ZIP Code Profile

ZIP Code 31303
Clyo, Georgia

ZIP code 31303 is in Clyo, located in Effingham County, Georgia, within the Savannah metro area. Its 2020 Census population was 2,365. The estimated median adjusted gross income per tax return is $52,083, and about 4% of filers report $200,000 or more.

2020 Population
2,365
Census ZCTA
County
Effingham
FIPS 13103
Median income (est.)
$52,083
IRS SOI 2022
Land Area
81.398 mi²
+ 1.599 mi² water

01Location & Geography

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

Primary CityClyo, GA
CountyEffingham County (FIPS 13103)
StateGeorgia (FIPS 13)
Metro Area (MSA)Savannah, GA Metro Area (42340)
Census Region / DivisionSouth Region · South Atlantic Division
Coordinates32.50542, -81.31343
Land / Water Area81.398 mi² land · 1.599 mi² water

02Income & Economics

Distribution of the 1,050 individual tax returns filed in 31303 by adjusted gross income bracket (IRS SOI, 2022).

< $25K
25.7%
$25K–$50K
22.9%
$50K–$75K
17.1%
$75K–$100K
10.5%
$100K–$200K
20.0%
$200K+
3.8%
The $200,000+ bracket accounts for 19% of 31303's total adjusted gross income, from 4% of returns — a concentration that drives the gap between the median ($52,083) 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 31303's IRS income metrics, 2020–2022.

Median income (2021→2022)
$52,083
▲ 10.3%
Filers earning $200K+
3.8%
▲ 1.0 pt
Total filers
1,050
▼ 0.9%
GET /zipc/v2/zipcodes/31303/soi?year=… $43K 2020 $47K 2021 $52K 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 31303 ZCTA.

2000
2,034
 
2010
1,999
▼ -1.7%
2020
2,365
▲ +18.3%

05USPS Postal Details

Delivery and facility attributes from the monthly USPS dataset.

ZIP ClassificationNon-Unique Zip
Facility TypePost Office
Carrier Route SortD
USPS Finance Number121848
City AliasesClyo

06Frequently Asked Questions

What county is ZIP code 31303 in?

ZIP code 31303 is in Effingham County, Georgia (county FIPS code 13103).

What city is ZIP code 31303?

The primary USPS city for 31303 is Clyo, GA.

What metro area (MSA) is 31303 in?

31303 is part of the Savannah, GA Metro Area (MSA code 42340).

What is the population of ZIP code 31303?

The 2020 Census population of 31303 was 2,365 residents.

What is the median income in ZIP code 31303?

Based on IRS Statistics of Income data, the estimated median adjusted gross income per tax return in 31303 is about $52,083, with around 4% of filers reporting $200,000 or more. Note that adjusted gross income is a tax measure and differs from U.S. Census household income.