ZIP Code 53103

53103 is one of Wisconsin's ZIP codes, delivering to addresses in Big Bend, Waukesha County.

City: Big Bend
County: Waukesha County
State: Wisconsin
Prefix: 531xx

Where this code sits

53103 is part of the 531xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Big Bend.

Big Bend Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53103 delivers to without sharing its boundary.

262 Area code 262

ZIP codes nearest 53103

The ZIP codes whose reference points sit closest to 53103.
ZIP code	Distance	Delivers to
ZIP code 53150	4.7 mi	Muskego, WI
ZIP code 53189	6.1 mi	Waukesha, WI
ZIP code 53146	6.6 mi	New Berlin, WI
ZIP code 53149	6.7 mi	Mukwonago, WI
ZIP code 53186	7.7 mi	Waukesha, WI
ZIP code 53187	8.6 mi	Waukesha, WI
ZIP code 53185	8.7 mi	Waterford, WI
ZIP code 53151	8.8 mi	New Berlin, 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 53103, plotted from its record coordinates.

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

Scope ZIP code 53103. 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.