Oakland Kentucky ZIP Codes

Oakland holds a single ZIP code.

Every ZIP code in Oakland

The complete list of Oakland, Kentucky ZIP codes with the county each falls in.
ZIP codeCounty
42159Warren County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Oakland codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Oakland. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Oakland ZIP code begins 421. Those first three digits identify the sectional center facility that processes mail for this part of Kentucky. Statewide that range covers 33 ZIP codes, so Oakland accounts for 3% of it.

Every Kentucky ZIP prefix and the region it covers →

Area codes covering Oakland

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Oakland occupies.

Oakland Kentucky area codes in full →

Where Oakland's ZIP codes sit

Each point is one Oakland ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Oakland

The closest places to Oakland with their own ZIP code list, nearest first.
CityDistanceZIP codes
Smiths Grove Kentucky ZIP codes2.2 mi1 ZIP code
Brownsville Kentucky ZIP codes10 mi1 ZIP code
Bowling Green Kentucky ZIP codes11 mi4 ZIP codes
Park City Kentucky ZIP codes11 mi1 ZIP code
Cave City Kentucky ZIP codes17 mi1 ZIP code
Glasgow Kentucky ZIP codes18 mi2 ZIP codes
Horse Cave Kentucky ZIP codes20 mi1 ZIP code
Scottsville Kentucky ZIP codes21 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.