ZIP Codes Box

Jefferson County, Wisconsin ZIP codes

10ZIP codes
10Cities and towns
76,915People in ZIP areas
262, 608, 920Area codes

Jefferson County is in Wisconsin and the Central Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.

All ZIP codes in Jefferson County

ZIP codeCityTypePopulationMedian income
53036IxoniaStandard3,730$92,674
53038Johnson CreekStandard4,192$96,127
53094WatertownStandard17,998$73,443
53137HelenvilleStandard1,650$116,550
53156PalmyraStandard3,232$85,313
53178SullivanStandard2,497$99,875
53538Fort AtkinsonStandard18,813$82,783
53549JeffersonStandard9,873$80,101
53551Lake MillsStandard9,731$94,401
53594WaterlooStandard5,199$88,390

Cities and towns in Jefferson County

Area codes in Jefferson County

Questions

How many ZIP codes are in Jefferson County, WI?
Jefferson County has 10 ZIP codes.
What cities are in Jefferson County?
Jefferson County ZIP codes cover Fort Atkinson, Helenville, Ixonia, Jefferson, Johnson Creek, Lake Mills, Palmyra and Sullivan and 2 other places.
What area code is Jefferson County, WI?
Jefferson County uses area codes 262, 608 and 920.
What time zone is Jefferson County in?
Jefferson County is in Central Time.

Other Wisconsin counties