Midwest region · Central Time
Iowa Area Codes
All 5 area codes serving Iowa, the cities each one covers, and which are overlays. Iowa is served by 5 area codes in the Central Time zone.
Last updated October 1, 2026
Full list
Every Iowa area code
Iowa is served by 5 area codes in the Central Time zone. It is a single-code state, so seven-digit local dialing may still work in many places.
| Code | Area served | Type | In service |
|---|---|---|---|
| 319 | Eastern Iowa including Cedar Rapids, Iowa City, Waterloo and Burlington | Geographic | Since 1947 |
| 515 | Central Iowa including Des Moines metro, Ames and Fort Dodge | Geographic | Since 1947 |
| 563 | Eastern Iowa along the Mississippi River, including the Quad Cities and Dubuque | Geographic | Since 2001 |
| 641 | North-central and south-central Iowa surrounding the Des Moines area | Geographic | Since 2000 |
| 712 | Western Iowa including Sioux City, Council Bluffs and the Iowa Great Lakes | Geographic | Since 1947 |
Area codes and dialing in Iowa
Iowa's 5 area codes mix older geographic codes with newer overlays. The busiest metros — around Cedar Rapids, Davenport, Des Moines — carry the most numbers and rely on overlays, which is why dialing rules vary by area. Quieter parts of the state may still use a single code. The original code in the Iowa list is 319 (Cedar Rapids).
Whenever a Iowa region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Browse Iowa another way
Explore by Midwest region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Iowa area code FAQ
How many area codes does Iowa have?
Iowa currently has 5 area codes: 319, 515, 563, 641, 712.
What is the main area code for Iowa?
The busiest metro in Iowa is served by the 319 code. Major cities include Cedar Rapids, Davenport, Des Moines, Mason City, Sioux City.
Does Iowa require 10-digit dialing?
Much of the state still permits 7-digit local calls, though 10-digit dialing always works. Ten-digit dialing is the national standard.