ZIP Code 40037

40037 is one of Kentucky's ZIP codes, delivering to addresses in Loretto, Marion County.

City: Loretto
County: Marion County
State: Kentucky
Prefix: 400xx

Where this code sits

40037 is part of the 400xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Loretto.

Loretto Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40037 delivers to without sharing its boundary.

ZIP codes nearest 40037

The ZIP codes whose reference points sit closest to 40037.
ZIP code	Distance	Delivers to
ZIP code 40049	1.6 mi	Nerinx, KY
ZIP code 40062	2.7 mi	Saint Francis, KY
ZIP code 40063	5.3 mi	Saint Mary, KY
ZIP code 40052	5.4 mi	New Hope, KY
ZIP code 40060	7.3 mi	Raywick, KY
ZIP code 40051	7.4 mi	New Haven, KY
ZIP code 40033	9.5 mi	Lebanon, KY
ZIP code 40004	12 mi	Bardstown, 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 40037, plotted from its record coordinates.

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

Scope ZIP code 40037. 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.