ZIP Code 53066

53066 is one of Wisconsin's ZIP codes, delivering to addresses in Oconomowoc, Waukesha County.

City: Oconomowoc
County: Waukesha County
State: Wisconsin
Prefix: 530xx

Where this code sits

53066 is part of the 530xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oconomowoc.

Oconomowoc Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53066 delivers to without sharing its boundary.

ZIP codes nearest 53066

The ZIP codes whose reference points sit closest to 53066.
ZIP code	Distance	Delivers to
ZIP code 53069	2.7 mi	Okauchee, WI
ZIP code 53058	3.9 mi	Nashotah, WI
ZIP code 53036	5.8 mi	Ixonia, WI
ZIP code 53018	6.1 mi	Delafield, WI
ZIP code 53118	6.6 mi	Dousman, WI
ZIP code 53064	6.7 mi	North Lake, WI
ZIP code 53029	7.2 mi	Hartland, WI
ZIP code 53003	7.2 mi	Ashippun, 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 53066, plotted from its record coordinates.

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

Scope ZIP code 53066. 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.