ZIP Code 53551

53551 is one of Wisconsin's ZIP codes, delivering to addresses in Lake Mills, Jefferson County.

City: Lake Mills
County: Jefferson County
State: Wisconsin
Prefix: 535xx

Where this code sits

53551 is part of the 535xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lake Mills.

Lake Mills Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53551 delivers to without sharing its boundary.

ZIP codes nearest 53551

The ZIP codes whose reference points sit closest to 53551.
ZIP code	Distance	Delivers to
ZIP code 53038	6.6 mi	Johnson Creek, WI
ZIP code 53549	7.7 mi	Jefferson, WI
ZIP code 53594	7.9 mi	Waterloo, WI
ZIP code 53523	8.2 mi	Cambridge, WI
ZIP code 53531	8.9 mi	Deerfield, WI
ZIP code 53559	9.9 mi	Marshall, WI
ZIP code 53538	12 mi	Fort Atkinson, WI
ZIP code 53094	13 mi	Watertown, WI

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 53551, plotted from its record coordinates.

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

Scope ZIP code 53551. 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.