ZIP Code 54966

54966 is one of Wisconsin's ZIP codes, delivering to addresses in Plainfield, Waushara County.

City: Plainfield
County: Waushara County
State: Wisconsin
Prefix: 549xx

Where this code sits

54966 is part of the 549xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Plainfield.

Plainfield Wisconsin ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 54966 delivers to without sharing its boundary.

ZIP codes nearest 54966

The ZIP codes whose reference points sit closest to 54966.
ZIP code	Distance	Delivers to
ZIP code 54943	6.7 mi	Hancock, WI
ZIP code 54909	7.4 mi	Almond, WI
ZIP code 54921	7.7 mi	Bancroft, WI
ZIP code 54930	13 mi	Coloma, WI
ZIP code 54984	13 mi	Wild Rose, WI
ZIP code 54982	14 mi	Wautoma, WI
ZIP code 54406	17 mi	Amherst, WI
ZIP code 54976	17 mi	Saxeville, 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 54966, plotted from its record coordinates.

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

Scope ZIP code 54966. 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.