ZIP Code 53146

53146 is one of Wisconsin's ZIP codes, delivering to addresses in New Berlin, Waukesha County.

City: New Berlin
County: Waukesha County
State: Wisconsin
Prefix: 531xx

Where this code sits

53146 is part of the 531xx range, the group of codes handled by one mail processing centre. New Berlin is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the New Berlin page.

New Berlin Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53146 delivers to without sharing its boundary.

ZIP codes nearest 53146

The ZIP codes whose reference points sit closest to 53146.
ZIP code	Distance	Delivers to
ZIP code 53151	3.1 mi	New Berlin, WI
ZIP code 53186	3.7 mi	Waukesha, WI
ZIP code 53187	4.6 mi	Waukesha, WI
ZIP code 53150	5.1 mi	Muskego, WI
ZIP code 53228	5.7 mi	Milwaukee, WI
ZIP code 53130	5.8 mi	Hales Corners, WI
ZIP code 53227	6.2 mi	Milwaukee, WI
ZIP code 53122	6.2 mi	Elm Grove, 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 53146, plotted from its record coordinates.

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

Scope ZIP code 53146. 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.