| Area Code | 319 |
| State | Iowa |
| Current Time in Area Code 319 | 319> CDT |
| Timezone | Central Daylight Time |
| Regional Market Area | Cedar Rapids-Waterloo-Iowa City and Dubuque Area Davenport-Rock Island-Moline Area Ottumwa-Kirksville Area Quincy-Hannibal-Keokuk |
| Metro Area(s) | Burlington, IA-IL Cedar Rapids, IA Fort Madison-Keokuk, IA-IL-MO Iowa City, IA Waterloo-Cedar Falls, IA |
| Population (2020) | 762302 |
| Adjacent Area Codes | 217,309,447,563,641,660 |
| Cedar Falls |
| Cedar Rapids |
| Iowa City |
| Marion |
| Waterloo |