About 51432 - Aspinwall, Iowa
The ZIP code 51432 of Aspinwall falls within Iowa, the United States - a sparsely populated area by population. It sits within Crawford County.
Census data puts the population of this ZIP code at 45 residents. That's below the Iowa average of about 3,313 people per ZIP code.
Population density runs around 55 people per sq. mile, making it a rural area.
This ZIP code sits alongside neighboring areas like Ankeny, Cedar Falls, Dubuque within Iowa.