Where is Area Code 641?

The most populous cities in area code 641 are: Cedar Rapids, Mason City, Marshalltown, Ottumwa, and Newton.

Other cities in the 641 area code include: Oskaloosa, Fairfield, Pella, Grinnell, Creston, Clear Lake, Charles City, Knoxville, Centerville, Osceola, Iowa Falls, Hampton, Chariton, Forest City, Albia, Osage, New Hampton, Garner, Tama, Bloomfield, Eldora, Belmond, Lamoni, Toledo, Lake Mills, Sigourney, Britt, Northwood, Monroe, Leon, Greenfield, Mount Ayr, Corydon, Guthrie Center, Ackley, Corning, State Center, Montezuma, Lenox, Brooklyn, Nora Springs, Manly, New Sharon, Melcher Dallas, and Baxter.

Mason City is a city in and the county seat of Cerro Gordo County, Iowa, United States. The population was 28,079 in the 2010 census, a decline from 29,172 in the 2000 census. The Mason City Micropolitan Statistical Area includes all of Cerro Gordo and Worth counties. It is commonly referred to as the "River City", as the city grew up centered on the Winnebago River.

Marshalltown is a city in, and the county seat of, Marshall County, Iowa, United States. The population was 27,552 in the 2010 census, compared to 26,009 in 2000.

Ottumwa is a city in and the county seat of Wapello County, Iowa, United States. The population was 25,023 at the 2010 census. Located in southeastern Iowa, the city is split into northern and southern halves by the Des Moines River.

The 641 area code lies within the Central Daylight Time Zone (or CDT). The current time in CDT is 2:38 PM on Jul 11, 2020.