Greene County ZIP Codes

Greene County is a county of Georgia.

ZIP codes: 4
Cities & towns: 4
Area codes: 2
Land area: 388 sq mi

Every ZIP code in Greene County

306xx

The complete list of Greene County, GA ZIP codes with the city each one delivers to.
ZIP code	City
30642	Greensboro
30665	Siloam
30669	Union Point
30678	White Plains

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Greene County codes above are listed without a column we would have to invent.

Cities and towns in Greene County

Area codes covering Greene County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Greene County's ZIP codes sit

Each point is the reference point of one Greene County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Greene County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.