ZIP Code 41091

41091 is one of Kentucky's ZIP codes, delivering to addresses in Union, Boone County.

City: Union
County: Boone County
State: Kentucky
Prefix: 410xx

Where this code sits

41091 is part of the 410xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Union.

Union Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 41091 delivers to without sharing its boundary.

859 Area code 859

ZIP codes nearest 41091

The ZIP codes whose reference points sit closest to 41091.
ZIP code	Distance	Delivers to
ZIP code 41022	1.7 mi	Florence, KY
ZIP code 41005	5.5 mi	Burlington, KY
ZIP code 41042	5.8 mi	Florence, KY
ZIP code 41094	6.4 mi	Walton, KY
ZIP code 41092	7.5 mi	Verona, KY
ZIP code 41021	8.3 mi	Hebron, KY
ZIP code 41018	8.3 mi	Erlanger, KY
ZIP code 47040	8.3 mi	Rising Sun, IN

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 41091, plotted from its record coordinates.

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

Scope ZIP code 41091. 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.