ZIP Code 40040

40040 is one of Kentucky's ZIP codes, delivering to addresses in Mackville, Washington County.

City: Mackville
County: Washington County
State: Kentucky
Prefix: 400xx

Where this code sits

40040 is part of the 400xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mackville.

Mackville Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40040 delivers to without sharing its boundary.

859 Area code 859

ZIP codes nearest 40040

The ZIP codes whose reference points sit closest to 40040.
ZIP code	Distance	Delivers to
ZIP code 40078	7.0 mi	Willisburg, KY
ZIP code 40061	7.9 mi	Saint Catharine, KY
ZIP code 40069	8.4 mi	Springfield, KY
ZIP code 40468	9.7 mi	Perryville, KY
ZIP code 40330	11 mi	Harrodsburg, KY
ZIP code 40452	12 mi	Mitchellsburg, KY
ZIP code 40328	13 mi	Gravel Switch, KY
ZIP code 40012	13 mi	Chaplin, 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 40040, plotted from its record coordinates.

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

Scope ZIP code 40040. 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.