Where Is Area Code 641?
Area code 641 is found in the US state of Iowa. Primarily servicing the city of Marshalltown (population: 31752), area code 641 covers 40 counties of Iowa.
Located in the Central time zone, area code 641 is on the same time as Chicago, IL.
Area code 641 was brought into effect on July 9, 2000. 641 was split from the parent 515 area code.
Counties in Area Code 641
- Adair,
- Adams,
- Appanoose,
- Butler,
- Cerro Gordo,
- Chickasaw,
- Clarke,
- Davis,
- Decatur,
- Floyd,
- Franklin,
- Grundy,
- Guthrie,
- Hancock,
- Hardin,
- Howard,
- Jasper,
- Jefferson,
- Keokuk,
- Lucas,
- Madison,
- Mahaska,
- Marion,
- Marshall,
- Mitchell,
- Monroe,
- Poweshiek,
- Ringgold,
- Story,
- Tama,
- Taylor,
- Union,
- Wapello,
- Warren,
- Wayne,
- Winnebago,
- Worth,
- Wright.
Most Populous Cities in Area Code 641
| City | County | City Population | Time Zone |
|---|---|---|---|
| Marshalltown | Marshall | 31,752 | CST |
| Ottumwa | Wapello | 30,000 | CST |
| Mason City | Cerro Gordo | 29,591 | CST |
| Newton | Jasper | 20,283 | CST |
| Oskaloosa | Mahaska | 15,096 | CST |
| Pella | Marion | 13,984 | CST |
| Fairfield | Jefferson | 13,350 | CST |
| Knoxville | Marion | 11,758 | CST |
| Grinnell | Poweshiek | 11,429 | CST |
| Charles City | Floyd | 10,187 | CST |
| Creston | Union | 9,625 | CST |
| Clear Lake | Cerro Gordo | 9,306 | CST |
| Centerville | Appanoose | 7,733 | CST |
| Bloomfield | Davis | 7,046 | CST |
| Osceola | Clarke | 6,873 | CST |
| Iowa Falls | Hardin | 6,762 | CST |
| Chariton | Lucas | 6,392 | CST |
| Albia | Monroe | 6,045 | CST |
| Forest City | Winnebago | 5,711 | CST |
| Hampton | Franklin | 5,707 | CST |
| Osage | Mitchell | 5,586 | CST |
| New Hampton | Chickasaw | 5,416 | CST |
| Tama | Tama | 4,445 | CST |
| Garner | Hancock | 4,083 | CST |
| Eldora | Hardin | 3,411 | CST |
Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.
View all United States Area Codes.
This page was last updated on July 3, 2015.