ZIP Code 53045

53045 is one of Wisconsin's ZIP codes, delivering to addresses in Brookfield, Waukesha County.

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

Where this code sits

53045 is part of the 530xx range, the group of codes handled by one mail processing centre. Brookfield is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Brookfield page.

Brookfield Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53045 delivers to without sharing its boundary.

ZIP codes nearest 53045

The ZIP codes whose reference points sit closest to 53045.
ZIP code	Distance	Delivers to
ZIP code 53008	2.1 mi	Brookfield, WI
ZIP code 53005	2.5 mi	Brookfield, WI
ZIP code 53122	3.4 mi	Elm Grove, WI
ZIP code 53263	4.4 mi	Milwaukee, WI
ZIP code 53007	4.7 mi	Butler, WI
ZIP code 53226	5.5 mi	Milwaukee, WI
ZIP code 53187	5.7 mi	Waukesha, WI
ZIP code 53046	5.8 mi	Lannon, 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 53045, plotted from its record coordinates.

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

Scope ZIP code 53045. 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.