Allamakee County, Iowa Zip Codes

Zip Code	City	Population
52172	Waukon	5,982
52162	Postville	3,548
52159	Monona	2,412
52151	Lansing	1,869
52160	New Albin	994
52146	Harpers Ferry	866
52170	Waterville	504
52140	Dorchester	453

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.