Denison, IA ZIP code

The ZIP code for Denison, Iowa is 51442. It is in Crawford County.

51442

Population in these ZIPs: 9,692
Avg. median income: $66,800population-weighted
Typical home value: $178,300population-weighted

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Denison, IA ZIP code list

Denison, IA ZIP codes
ZIP code	Population	Median income	Typical home value
51442	9,692	$66,767	$178,300

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Denison

Deloit 6 mi
Arion 7 mi
Vail 9 mi
Dow City 11 mi
Schleswig 12 mi
Kiron 12 mi
Charter Oak 12 mi
Ricketts 13 mi
Westside 13 mi
Manilla 13 mi
Defiance 13 mi
Aspinwall 14 mi

Frequently asked questions

What is the ZIP code for Denison, IA?

The ZIP code for Denison, IA is 51442.

What county is Denison, Iowa in?

Denison ZIP codes are in Crawford County.