World Population Review
Continents
Countries
World Cities
US States
US Counties
US Cities
Categories
X
Categories
Agriculture
Crime/Safety
Culture
Economics
Education
Environment
Facts/Trivia
Flags
Geography
Health
History
Infrastructure/Energy
Law
Manufacturing/Mining
Military
Politics/Government
Population
Sports
Tech/Business
Travel
Washington County, Kansas Zip Codes
Zip Code
City
Population
66968
Washington
1,309
66945
Hanover
1,048
66937
Clifton
928
66953
Linn
634
66943
Greenleaf
590
66944
Haddam
321
66933
Barnes
296
66958
Morrowville
272
66962
Palmer
218
66946
Hollenberg
120
66955
Mahaska
49
Population is the most recent figure from the U.S. Census Bureau's 2022
American Community Survey (ACS) 5-Year Estimates
.