ZIP Code 50674
About Sumner
Sumner is a city in Bremer County, Iowa, United States. The city is located along the county's eastern border, between Bremer and Fayette counties. The population was 2,030 at the time of the 2020 census. The Bremer County portion of Sumner is part of the Waterloo–Cedar Falls Metropolitan Statistical Area.
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Area Profile
US Census (ACS 5-year · Gazetteer)
3,596
population
$63,429
median household income
23
people / sq mi
$156,300
median home value
$839
median gross rent
46.9
median age
1,669
housing units
1,552
households
158.9
land area (sq mi)