Florissant, Missouri

Where Is Area Code 314?

Area code 314 is in eastern Missouri. It serves the city of St. Louis and parts of St. Louis County, including Florissant. This area sits along the Mississippi River near the Missouri-Illinois state line.

Area code 314 covers communities in the inner St. Louis metro area. Cities and places served include St. Louis, Florissant, Ferguson, University City, and Clayton. The code does not cover all of the wider St. Louis region, because nearby areas use other area codes.

This area includes some of the best-known places in the St. Louis region. Notable landmarks in the 314 area include the Gateway Arch in St. Louis and Forest Park, which is home to institutions such as the Saint Louis Art Museum, the St. Louis Zoo, and the Missouri History Museum.

History of Area Code 314

Area code 314 is one of the original North American area codes created in 1947. At first, it covered a much larger part of eastern Missouri. As telephone use grew, the service area became smaller through later splits.

Area code 314 was split in 1996, when area code 573 was created for much of the surrounding eastern Missouri territory outside the core St. Louis area. Area code 557 later overlaid 314 in 2022, which means both area codes now serve the same geographic area and 10-digit dialing is required.

Key Facts About Area Code 314

• Area code 314 is in Missouri, and its best-known city is St. Louis.
• Area code 314 also serves Florissant, which is in St. Louis County.
• Area code 314 is in the Central Time Zone.
• Area code 314 was introduced in 1947 as one of the original area codes in the North American Numbering Plan.
• Area code 314 was reduced in size in 1996 when area code 573 was created.
• Area code 314 is part of an overlay complex with area code 557, which began service in 2022.
• Area code 314 covers landmarks and institutions such as the Gateway Arch, Forest Park, Washington University in St. Louis, and Saint Louis University.
• Area code 314 serves part of the city and county core of the Greater St. Louis metropolitan area.

Frequently Asked Questions

What state is area code 314 in?

Area code 314 is in Missouri.

What major cities use area code 314?

Major cities and communities in area code 314 include St. Louis, Florissant, Ferguson, University City, and Clayton.

Is area code 314 a toll-free number?

No. Area code 314 is a geographic area code for eastern Missouri.