IOWA · STATE GUIDE
Iowa area codes: Des Moines, Cedar Rapids, Davenport, and Sioux City
- Local date and time
- Central Time
Map data: UCLA Geoportal (2015) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
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Iowa area codes at a glance
- Area codes
- 5
- Time zone
- Central
Rules for answering calls in Iowa
General information with its sources, not legal advice. All sources checked 2 November 2026. An area code does not show where a caller is.
Recording calls
Iowa law lets a person intercept a communication as a party, or with one party's prior consent to the interception, unless the purpose is a criminal, tortious, or other injurious act, with exceptions set out in the law.
Source: Iowa Code § 808B.2(2)(c)
Iowa law lets a person whose communication is unlawfully intercepted, disclosed, or used recover at least $100 a day or $1,000, whichever is higher, plus attorney fees and possible punitive damages, with exceptions set out in the law.
Source: Iowa Code § 808B.8(1)
History
- 1947 · First area codesIowa started with 319, 515, and 712.
- 2000–2001 · SplitsTwo codes split from existing ones.
Area codes by region
| Region | Key cities | Cities | Area codes |
|---|---|---|---|
| Des Moines-West Des Moines, IA | Des Moines, Indianola, Newton | 47 | 515, 641, and 712 |
| Cedar Rapids, IA | Cedar Rapids, Anamosa, Vinton | 33 | 319 and 563 |
| Waterloo-Cedar Falls, IA | Waterloo, Cedar Falls, Waverly | 17 | 319, 563, and 641 |
| Iowa City, IA | Iowa City, North Liberty, Washington | 16 | 319 |
| Davenport-Moline-Rock Island, IA-IL | Davenport, Eldridge, Le Claire | 7 | 563 |
| Ames, IA | Ames, Boone, Nevada | 18 | 515 and 641 |
| Sioux City, IA-NE-SD | Sioux City, Sergeant Bluff, Moville | 15 | 712 |
| Omaha, NE-IA | Council Bluffs, Glenwood, Carter Lake | 29 | 712 |
| Dubuque, IA | Dubuque, Dyersville, Cascade | 10 | 563 |
| Mason City, IA | Mason City, Clear Lake, Northwood | 16 | 641 |
| Marshalltown, IA | Marshalltown, State Center, Le Grand | 12 | 641 |
| Muscatine, IA | Muscatine, West Liberty, Wilton | 6 | 319 and 563 |
| Fort Dodge, IA | Fort Dodge, Gowrie, Dayton | 13 | 515 |
| Ottumwa, IA | Ottumwa, Eddyville, Eldon | 6 | 641 |
| Clinton, IA | Clinton, Wheatland, Grand Mound | 9 | 563 |
| Burlington, IA-IL | Burlington, Mediapolis, Danville | 3 | 319 |
| Fort Madison, IA | Fort Madison, Keokuk, West Point | 6 | 319 |
| Pella, IA | Pella, Knoxville, Pleasantville | 4 | 515 and 641 |
| Le Mars, IA | Le Mars, Remsen, Akron | 8 | 712 |
| Storm Lake, IA | Storm Lake, Alta, Newell | 8 | 712 |
| Carroll, IA | Carroll, Manning, Coon Rapids | 12 | 712 |
| Oskaloosa, IA | Oskaloosa, New Sharon, Fremont | 6 | 641 |
| Spencer, IA | Spencer, Everly, Royal | 7 | 712 |
| Spirit Lake, IA | Spirit Lake, Milford, Arnolds Park | 6 | 712 |
| Rest of Iowa | Grinnell, Fairfield, Sioux Center | 427 | 319, 515, 563, 641, and 712 |
Other Iowa area codes
| Area code | Main communities | In service since | How it began |
|---|---|---|---|
| 319 | Cedar Rapids, Iowa City, Waterloo, and 134 more | 1 January 1947 | Started service |
| 712 | Sioux City, Council Bluffs, Storm Lake, and 241 more | 1 January 1947 | Started service |
| 641 | Marshalltown, Mason City, Ottumwa, and 220 more | 9 July 2000 | Split from 515 |
| 563 | Davenport, Dubuque, Clinton, and 106 more | 25 March 2001 | Split from 319 |
Sources: area codes and in-service dates, the North American Numbering Plan Administrator.
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