ZIP Code 42303

42303 is one of Kentucky's ZIP codes, delivering to addresses in Owensboro, Daviess County.

City: Owensboro
County: Daviess County
State: Kentucky
Prefix: 423xx

Where this code sits

42303 is part of the 423xx range, the group of codes handled by one mail processing centre. Owensboro is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Owensboro page.

Owensboro Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42303 delivers to without sharing its boundary.

ZIP codes nearest 42303

The ZIP codes whose reference points sit closest to 42303.
ZIP code	Distance	Delivers to
ZIP code 42302	1.9 mi	Owensboro, KY
ZIP code 42304	1.9 mi	Owensboro, KY
ZIP code 42301	4.1 mi	Owensboro, KY
ZIP code 42355	7.5 mi	Maceo, KY
ZIP code 42366	8.2 mi	Philpot, KY
ZIP code 47635	9.0 mi	Rockport, IN
ZIP code 42376	9.4 mi	Utica, KY
ZIP code 42377	12 mi	West Louisville, KY

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 42303, plotted from its record coordinates.

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

Scope ZIP code 42303. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.