ZIP Code 40023

40023 is one of Kentucky's ZIP codes, delivering to addresses in Fisherville, Jefferson County.

City: Fisherville
County: Jefferson County
State: Kentucky
Prefix: 400xx

Where this code sits

40023 is part of the 400xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fisherville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40023 delivers to without sharing its boundary.

502 Area code 502

ZIP codes nearest 40023

The ZIP codes whose reference points sit closest to 40023.
ZIP code	Distance	Delivers to
ZIP code 40022	4.4 mi	Finchville, KY
ZIP code 40018	4.9 mi	Eastwood, KY
ZIP code 40299	5.1 mi	Louisville, KY
ZIP code 40067	6.1 mi	Simpsonville, KY
ZIP code 40245	7.8 mi	Louisville, KY
ZIP code 40243	7.9 mi	Louisville, KY
ZIP code 40291	8.3 mi	Louisville, KY
ZIP code 40071	8.5 mi	Taylorsville, 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 40023, plotted from its record coordinates.

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

Scope ZIP code 40023. 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.