Bremer County, Iowa Zip Codes

Zip Code	City	Population
50677	Waverly	12,746
50674	Sumner	3,539
50622	Denver	3,179
50676	Tripoli	2,095
50647	Janesville	2,032
50668	Readlyn	1,159
50666	Plainfield	720
50631	Frederika	250

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