ZIP Codes Box

Washington County, Kansas ZIP codes

11ZIP codes
11Cities and towns
5,761People in ZIP areas
402, 531, 785Area codes

Washington County is in Kansas 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 Washington County

ZIP codeCityTypePopulationMedian income
66933BarnesStandard345$55,625
66937CliftonStandard691$63,456
66943GreenleafStandard568$67,738
66944HaddamStandard304$75,625
66945HanoverStandard1,063$69,688
66946HollenbergStandard161$53,542
66953LinnStandard628$66,250
66955MahaskaStandard47$85,500
66958MorrowvilleStandard198$77,750
66962PalmerStandard302$74,583
66968WashingtonStandard1,454$59,438

Cities and towns in Washington County

Area codes in Washington County

Questions

How many ZIP codes are in Washington County, KS?
Washington County has 11 ZIP codes.
What cities are in Washington County?
Washington County ZIP codes cover Barnes, Clifton, Greenleaf, Haddam, Hanover, Hollenberg, Linn and Mahaska and 3 other places.
What area code is Washington County, KS?
Washington County uses area codes 402, 531 and 785.
What time zone is Washington County in?
Washington County is in Central Time.

Other Kansas counties