Cedar Rapids, Iowa

Where Is Area Code 319?

Area code 319 is in eastern and southeastern Iowa. It covers Cedar Rapids, Iowa City, Waterloo, and many nearby communities. The code serves part of the Cedar Rapids and Iowa City region, plus parts of the Waterloo and Burlington areas.

Area code 319 covers all or part of several eastern Iowa counties, including Linn County, Johnson County, Black Hawk County, and Des Moines County. Major communities in the 319 area include Cedar Rapids, Iowa City, Waterloo, Cedar Falls, Burlington, Coralville, Marion, and North Liberty. The area includes both urban centers and smaller towns across a broad stretch of eastern Iowa.

This area includes notable Iowa landmarks and institutions. Cedar Rapids sits on the Cedar River, and Iowa City is home to the University of Iowa. The 319 region also includes the Waterloo-Cedar Falls area and communities along the Mississippi River corridor near Burlington.

History of Area Code 319

Area code 319 was established in 1947. It was one of Iowa's original area codes in the North American Numbering Plan. At first, 319 covered a larger part of eastern Iowa than it does today.

Area code 319 changed in 2001, when area code 563 was split off to serve much of eastern Iowa along the Mississippi River. In 2025, the Iowa Utilities Commission approved an all-services overlay for 319 using area code 861. That overlay is scheduled to begin with permissive 10-digit dialing on October 24, 2025, and mandatory 10-digit dialing on April 24, 2026.

Key Facts About Area Code 319

• Area code 319 is a geographic area code in the state of Iowa.
• Cedar Rapids is the primary city commonly associated with area code 319.
• Area code 319 also serves Iowa City, Waterloo, Cedar Falls, Burlington, Marion, Coralville, and North Liberty.
• Area code 319 is in the Central Time Zone.
• Area code 319 was created in 1947 as one of Iowa's original area codes.
• Area code 563 split from area code 319 in 2001.
• Area code 861 is the approved overlay for area code 319, with implementation beginning in 2025 and 2026.
• The 319 area includes the University of Iowa in Iowa City and the Cedar River in Cedar Rapids.

Frequently Asked Questions

What state is area code 319 in?

Area code 319 is in Iowa.

What major cities use area code 319?

Major cities in area code 319 include Cedar Rapids, Iowa City, Waterloo, Cedar Falls, Burlington, Marion, Coralville, and North Liberty.

Is area code 319 a toll-free number?

No. Area code 319 is a geographic area code.