Irwin, IA ZIP code

The ZIP code for Irwin, Iowa is 51446. It is in Shelby County.

51446

Population in these ZIPs: 499
Avg. median income: $62,800population-weighted
Typical home value: $150,300population-weighted

Loading map…

Click anywhere on the map to see which ZIP code it's in.

Irwin, IA ZIP code list

Irwin, IA ZIP codes
ZIP code	Population	Median income	Typical home value
51446	499	$62,750	$150,300

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 Irwin

Kirkman 4 mi
Manilla 7 mi
Defiance 9 mi
Aspinwall 10 mi
Kimballton 10 mi
Westphalia 11 mi
Manning 11 mi
Gray 12 mi
Earling 12 mi
Audubon 14 mi
Elk Horn 14 mi
Harlan 16 mi

Frequently asked questions

What is the ZIP code for Irwin, IA?

The ZIP code for Irwin, IA is 51446.

What county is Irwin, Iowa in?

Irwin ZIP codes are in Shelby County.