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County ZIP codes · Georgia · FIPS 13155

Irwin County, GA ZIP Codes

Irwin County, Georgia has 9 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 7 residential and 2 for PO boxes or a single organization. 3 of the residential ones lie mainly in Irwin County and 4 mainly in a neighboring county; 6 cross the county line. Median household income ranges from $42,249 in 31750 (Fitzgerald) to $50,833 in 31774 (Ocilla) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Irwin County?

31733 · Chula: $49k31749 · Enigma: $39k31750 · Fitzgerald: $42k31774 · Ocilla: $51k31783 · Rebecca: $54k31790 · Sycamore: $63k31798 · Wray: $59k3175031798317743178331733317903174931733 · Chula: $49k31749 · Enigma: $39k31750 · Fitzgerald: $42k31774 · Ocilla: $51k31783 · Rebecca: $54k31790 · Sycamore: $63k31798 · Wray: $59k3175031798317743178331733317903174931733 · Chula: $49k31749 · Enigma: $39k31750 · Fitzgerald: $42k31774 · Ocilla: $51k31783 · Rebecca: $54k31790 · Sycamore: $63k31798 · Wray: $59k31750317983177431783317333179031749
The residential ZIP codes of Irwin County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

They carry 7 postal town names: Fitzgerald, Ocilla, Sycamore, Enigma, Rebecca, Chula, Wray.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 7 residential ZIP codes in Irwin County

3 ZIP codes lie mainly in Irwin County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Irwin County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
31774 Ocilla 5,896 36 $51k $100k 100%
31733 Chula 1,373 25 $49k $207k 61%
31798 Wray 647 7 $59k $67k 53%

Partly in Irwin County

Residential ZIP codes mainly in another county that reach at least 1% into Irwin County, by their share here
In this county
31783 Rebecca 1,707 17 $54k $97k 28%
31750 Fitzgerald 18,552 66 $42k $115k 25%
31749 Enigma 2,557 40 $39k $95k 14%
31790 Sycamore 2,643 38 $63k $114k 3%

Download the 9 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

6 ZIP codes of Irwin County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Irwin County and in the neighboring counties
ZIPIn IrwinElsewhere
3175025%Ben Hill County75%
317903%Turner County94%; Tift County3%
3174914%Berrien County78%; Tift County8%
3178328%Turner County52%; Ben Hill County19%
3173361%Tift County39%
3179853%Coffee County34%; Ben Hill County13%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Irwin County without a residential area (GeoNames postal codes)
ZIPPostal name
31760Irwinville
31769Mystic

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Irwin County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Irwin County starts with 317.

Three-digit prefixes of Irwin County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Irwin County's
PrefixSectional centerHereAll codes
317Tallahassee, FL (SCF 323)963

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.