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County ZIP codes · Georgia · FIPS 13075

Cook County, GA ZIP Codes

Cook County, Georgia has 5 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Cook County and 1 mainly in a neighboring county; 2 cross the county line. Median household income ranges from $51,597 in 31620 (Adel) to $83,946 in 31632 (Hahira) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Cook County?

31620 · Adel: $52k31627 · Cecil: $30k31632 · Hahira: $84k31637 · Lenox: $65k31647 · Sparks: $52k3162031632316373164731620 · Adel: $52k31627 · Cecil: $30k31632 · Hahira: $84k31637 · Lenox: $65k31647 · Sparks: $52k3162031632316373164731620 · Adel: $52k31627 · Cecil: $30k31632 · Hahira: $84k31637 · Lenox: $65k31647 · Sparks: $52k31620316323163731647
The residential ZIP codes of Cook 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 5 postal town names: Hahira, Adel, Lenox, Sparks, Cecil.

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

All 5 residential ZIP codes in Cook County

4 ZIP codes lie mainly in Cook County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in Cook County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
31620 Adel 10,969 88 $52k $161k 100%
31637 Lenox 3,217 39 $65k $135k 41%
31647 Sparks 3,071 68 $52k $148k 100%
31627 Cecil 287 388 $30k $74k 100%

Partly in Cook County

Residential ZIP codes mainly in another county that reach at least 1% into Cook County, by their share here
In this county
31632 Hahira 15,942 142 $84k $266k 21%

Download the 5 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?

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

Share of each ZIP code's land in Cook County and in the neighboring counties
ZIPIn CookElsewhere
3163221%Lowndes County 79%
3163741%Berrien County 36%; Colquitt County 17%; Tift County 6%

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

Which first three digits do Cook 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 Cook County starts with 316.

Three-digit prefixes of Cook 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 Cook County's
PrefixSectional centerHereAll codes
316 Tallahassee, FL (SCF 323) 5 33

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