ZIP Code 40010

40010 is one of Kentucky's ZIP codes, delivering to addresses in Buckner, Oldham County.

City: Buckner
County: Oldham County
State: Kentucky
Prefix: 400xx

Where this code sits

40010 is part of the 400xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Buckner.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40010 delivers to without sharing its boundary.

502 Area code 502

ZIP codes nearest 40010

The ZIP codes whose reference points sit closest to 40010.
ZIP code	Distance	Delivers to
ZIP code 40032	2.2 mi	La Grange, KY
ZIP code 40014	2.9 mi	Crestwood, KY
ZIP code 40031	3.7 mi	La Grange, KY
ZIP code 40056	5.1 mi	Pewee Valley, KY
ZIP code 40026	7.0 mi	Goshen, KY
ZIP code 40245	7.5 mi	Louisville, KY
ZIP code 40077	8.2 mi	Westport, KY
ZIP code 40241	8.5 mi	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 40010, plotted from its record coordinates.

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

Scope ZIP code 40010. 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.