ZIP Codes of Irwin County, GA

Population & People
Population & People
Total Population
6,543
Household Income
Household Income
Median Income
$54,656
Housing
Housing
Total Housing Units
3,193
Business & Economy
Business & Economy
Total Businesses
104
Employment
Employment
Employment Rate
55.02%
Education
Education
Bachelor's Degree+
16.21%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (2 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:229
Timezone:Eastern (GMT -05:00)
Local Time:2:11:45 PM
Population:6,543 [See All]
FIPS:13155
Land Area:257 sq mi
Water Area:6 sq mi
Coordinates:31.6108, -83.2271
Quick Link:
https://www.zip-codes.com/county/ga-irwin.asp
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Notable population decline
Lost 10.0% of residents since 2014.

Standout ZIPs in this County


Most Populous
Ocilla · 5,896 people
90.1% of county total
Highest Income
Wray · $58,480 median
1.1× county average
Largest Land Area
Ocilla · 168.6 sq mi
Spans the most ground
Fastest Growth
Ocilla · -6.7% (10-yr)
6,317 → 5,896 residents
Most Educated
Ocilla · 16.0% bachelor's+
637 of 3,973 adults 25+

Things worth knowing about Irwin County


6,543 residents live across 3 ZIPs covering 257 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 7,272 to 6,543 from 2014 to 2024 — a -10.0% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 31798 (Wray, $58,480 median) and poorest ZIP 31774 (Ocilla, $50,833) are 13.8 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.5× across this county — from $66,800 in 31798 (Wray) to $99,500 in 31774 (Ocilla).

Density varies across the county — from 7 people/sq mi in 31798 (Wray) to 35 in 31774 (Ocilla).

Educational attainment ranges from 16.0% bachelor's+ in 31774 (Ocilla) to 17.7% in 31798 (Wray) — the breadth of educational profiles across the area.

Within Georgia, this is the #140 most populous of 161 counties and ranks #104 for median household income .

Weighted by population, the typical household earns about $51,589 across the county — reflecting what a typical resident sees, not a simple ZIP average.

16.2% of adults age 25+ hold a bachelor's degree or higher (722 of 4,453 reporting).

2 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Irwin County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Ocilla

Population decline

Irwin County lost 10.0% of residents between 2014 and 2024. ZIPs that shed the largest share:

Wray
-32.3%
955 → 647 residents

All ZIP Codes in Irwin County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
31774OcillaStandard5,896$50,833168.6-6.7%
31798WrayStandard647$58,48088.2-32.3%
31769MysticPO Box0.0

Adjacent & Nearby Counties