ZIP Code 53931

53931 is one of Wisconsin's ZIP codes, delivering to addresses in Fairwater, Fond du Lac County.

City: Fairwater
County: Fond du Lac County
State: Wisconsin
Prefix: 539xx

Where this code sits

53931 is part of the 539xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fairwater.

Fairwater Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 53931 delivers to without sharing its boundary.

ZIP codes nearest 53931

The ZIP codes whose reference points sit closest to 53931.
ZIP code	Distance	Delivers to
ZIP code 53919	4.4 mi	Brandon, WI
ZIP code 54971	6.9 mi	Ripon, WI
ZIP code 53946	7.4 mi	Markesan, WI
ZIP code 54941	8.4 mi	Green Lake, WI
ZIP code 53963	10 mi	Waupun, WI
ZIP code 54974	12 mi	Rosendale, WI
ZIP code 53933	12 mi	Fox Lake, WI
ZIP code 54964	13 mi	Pickett, 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 53931, plotted from its record coordinates.

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

Scope ZIP code 53931. 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.