ZIP Code 40840

40840 is one of Kentucky's ZIP codes, delivering to addresses in Helton, Leslie County.

City: Helton
County: Leslie County
State: Kentucky
Prefix: 408xx

Where this code sits

40840 is part of the 408xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Helton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 40840 delivers to without sharing its boundary.

606 Area code 606

ZIP codes nearest 40840

The ZIP codes whose reference points sit closest to 40840.
ZIP code	Distance	Delivers to
ZIP code 40858	3.7 mi	Mozelle, KY
ZIP code 40810	3.9 mi	Bledsoe, KY
ZIP code 40816	4.5 mi	Chappell, KY
ZIP code 40874	4.7 mi	Warbranch, KY
ZIP code 40803	5.3 mi	Asher, KY
ZIP code 40806	6.9 mi	Baxter, KY
ZIP code 40854	7.6 mi	Loyall, KY
ZIP code 40827	7.8 mi	Essie, 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 40840, plotted from its record coordinates.

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

Scope ZIP code 40840. 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.