ZIP Code 40328

40328 is one of Kentucky's ZIP codes, delivering to addresses in Gravel Switch, Marion County.

City: Gravel Switch
County: Marion County
State: Kentucky
Prefix: 403xx

Where this code sits

40328 is part of the 403xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gravel Switch.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40328 delivers to without sharing its boundary.

ZIP codes nearest 40328

The ZIP codes whose reference points sit closest to 40328.
ZIP code	Distance	Delivers to
ZIP code 40452	7.5 mi	Mitchellsburg, KY
ZIP code 40468	7.6 mi	Perryville, KY
ZIP code 40009	8.3 mi	Bradfordsville, KY
ZIP code 40464	8.5 mi	Parksville, KY
ZIP code 40033	10 mi	Lebanon, KY
ZIP code 40040	13 mi	Mackville, KY
ZIP code 40069	13 mi	Springfield, KY
ZIP code 40437	15 mi	Hustonville, 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 40328, plotted from its record coordinates.

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

Scope ZIP code 40328. 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.