Zip Area Code

Fond Du Lac, Wisconsin

Fond Du Lac, Wisconsin, in Fond du Lac County, has ZIP codes 54935, 54936 and 54937 and area code 920, with 274 as an overlay.

ZIP codes
54935, 54936, 54937
Area codes
920, 274
Time zone
Central Time
Coordinates
43.7714, -88.4932

ZIP codes in Fond Du Lac

ZIP codePost officeCountyArea codes
54935Fond Du LacFond du Lac County920, 274
54936*Fond Du LacFond du Lac County920, 274
54937Fond Du LacFond du Lac County920, 274

* No mapped delivery area: P.O. boxes or a single organization. Area codes are those of the nearest ZIP code area.

Area codes for Fond Du Lac

  • Area code 920

    In service since July 26, 1997. Shares its area with 274. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 274

    In service since May 5, 2023. Shares its area with 920. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Fond Du Lac is in the Central Time zone.

Towns near Fond Du Lac