About 51527 - Defiance, Iowa
Located in Iowa, the United States is home to the sparsely populated community of Defiance, served by ZIP code 51527. It sits within Shelby County.
Census data puts the population of this ZIP code at 362 residents. That's below the Iowa average of about 3,313 people per ZIP code.
Population density runs around 3 people per sq. mile, making it a rural area.
Nearby communities in Iowa include Ankeny, Cedar Falls, Dubuque.