State Abbreviation Guide

What Is the Abbreviation for Iowa?

The standard 2-letter abbreviation for Iowa is IA.

State Abbreviation
IA
Traditional Form
Iowa
Capital
Des Moines
Region
Midwest

Iowa Abbreviation

Iowa's abbreviation is IA. IA is the form used in mailing addresses, forms, databases, and current style guides.

2-letter postal code
IA
Traditional / AP style
Iowa
Address format
Des Moines, IA
Takes periods?
No — write IA, not IA.

Iowa Abbreviation for Mailing and Forms

Use IA for Iowa in mailing addresses, shipping labels, government forms, and business records.

Mailing addresses
Shipping labels
Online checkout forms
Tax documents
Spreadsheets & databases
Government & school records

In all of these contexts write IA in uppercase. The form IA. with a period is incorrect for postal use.

What Does IA Stand For?

Iowa's USPS abbreviation is IA.

USPS adopted IA for Iowa in 1963, and it remains the standard postal form for addresses, forms, and databases.

How to Write an Iowa Address

In a U.S. mailing address, write the city name, then IA in uppercase, then the five-digit ZIP Code. Never put a period after the abbreviation.

John Smith 123 Main St Des Moines, IA ZIP

The same format applies in checkout forms, school worksheets, CRM systems, spreadsheets, shipping labels, and government databases — anywhere a two-letter state code is required.

Related Abbreviation Questions

These states share a first letter, region, or alphabetical position with Iowa and are commonly looked up alongside it.

What is the abbreviation for Idaho? Idaho's abbreviation is ID. What is the abbreviation for Illinois? Illinois's abbreviation is IL. What is the abbreviation for Indiana? Indiana's abbreviation is IN. What is the abbreviation for Kansas? Kansas's abbreviation is KS. What is the abbreviation for Kentucky? Kentucky's abbreviation is KY. What is the abbreviation for Michigan? Michigan's abbreviation is MI.

FAQ

What is the abbreviation for Iowa?

The standard USPS abbreviation for Iowa is IA.

What is the postal abbreviation for Iowa?

IA is the two-letter postal abbreviation for Iowa. It is the form used in mailing addresses, shipping labels, forms, and databases.

How do you abbreviate Iowa?

Abbreviate Iowa as IA in current USPS, mailing, and database use.

What is the two-letter abbreviation for Iowa?

IA is the official two-letter abbreviation for Iowa.

What is the Iowa state code?

IA is the two-letter state code used for Iowa in mailing addresses, forms, spreadsheets, and databases.

Why is Iowa abbreviated IA?

Iowa's USPS abbreviation is IA.

What does IA stand for?

IA stands for Iowa in the USPS state abbreviation system.

What is the old abbreviation for Iowa?

Older editorial styles often wrote Iowa as Iowa. For mailing and database use, the modern standard is IA.

How do you write an Iowa mailing address?

Use the city name, then the two-letter postal code IA, then the ZIP Code. For example: Des Moines, IA 00000.

What state is IA?

IA is the postal abbreviation for Iowa, located in the Midwest region. The capital is Des Moines.