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County ZIP codes · Georgia · FIPS 13133

Greene County, GA ZIP Codes

Greene County, Georgia has 7 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Greene County and 3 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $48,529 in 30678 (White Plains) to $110,250 in 30677 (Watkinsville) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Greene County?

30631 · Crawfordville: $52k30642 · Greensboro: $96k30650 · Madison: $72k30665 · Siloam: –30669 · Union Point: $66k30677 · Watkinsville: $110k30678 · White Plains: $49k30631306503064230669306773067830631 · Crawfordville: $52k30642 · Greensboro: $96k30650 · Madison: $72k30665 · Siloam: –30669 · Union Point: $66k30677 · Watkinsville: $110k30678 · White Plains: $49k30631306503064230669306773067830631 · Crawfordville: $52k30642 · Greensboro: $96k30650 · Madison: $72k30665 · Siloam: –30669 · Union Point: $66k30677 · Watkinsville: $110k30678 · White Plains: $49k306313065030642306693067730678
The residential ZIP codes of Greene 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?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $52,232 and $71,599.

They carry 7 postal town names: Watkinsville, Greensboro, Madison, Union Point, Crawfordville, White Plains, Siloam.

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

All 7 residential ZIP codes in Greene County

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

Residential ZIP codes mainly in Greene County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
30642 Greensboro 15,343 83 $96k $496k 100%
30669 Union Point 3,285 22 $66k $103k 77%
30678 White Plains 1,271 18 $49k $173k 74%
30665 Siloam 117 403 – $78k 100%

Partly in Greene County

Residential ZIP codes mainly in another county that reach at least 1% into Greene County, by their share here
In this county
30677 Watkinsville 22,616 185 $110k $436k 13%
30650 Madison 14,056 61 $72k $336k 8%
30631 Crawfordville 1,820 10 $52k $60k 1%

Download the 7 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?

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

Share of each ZIP code's land in Greene County and in the neighboring counties
ZIPIn GreeneElsewhere
3067713%Oconee County 87%
306508%Morgan County 90%; Walton County 1%
3066977%Oglethorpe County 12%; Taliaferro County 11%
306311%Taliaferro County 96%; Wilkes County 3%
3067874%Hancock County 22%; Taliaferro County 4%

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

Which first three digits do Greene 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 Greene County starts with 306.

Three-digit prefixes of Greene 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 Greene County's
PrefixSectional centerHereAll codes
306 North Metro, GA (SCF 300) 7 52

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