ZIP Code 51577
About Walnut
Walnut is a city in Pottawattamie County, Iowa, United States. The population was 747 at the time of the 2020 census. Walnut is located on Interstate 80 and is famous for its many antique stores. In recent years Walnut has become a regional center of wind turbine electrical generation.
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Area Profile
US Census (ACS 5-year · Gazetteer)
1,637
population
$67,928
median household income
20
people / sq mi
$112,700
median home value
$831
median gross rent
64.2
median age
529
housing units
473
households
83.6
land area (sq mi)