Area Code 314

314 area code is being used for dialing/telecommunication purposes in Missouri, covering 13 major cities and 2 counties, according to (NANP) North American Numbering Plan for 3-digit Numbering Plan Area (NPA) code. All the areas using NPA code 314 is part of CST (Central Standard Time) timezone.

314 Area Code Covers 13 Cities

Check this below table to know 13 major cities (having more than 20,000 population) in Missouri using numbering plan area code 314 for dialing/telecommunication purposes.

City	ZIP Codes	Population
Florissant, MO	4	52,167
Hazelwood, MO	3	25,345
Maryland Heights, MO	1	28,099

2 Counties Using 314 as Area Code

314 area code is being used in 2 counties of Missouri for dialing/telecommunication purposes.

• St. Louis County, MO
• St. Louis city, MO

49 More NPA Codes Related to Area Code 314

1 or more of these 49 NPA codes are being used in the same or adjacent states of Missouri in the United States.

• 217 Area Code
• 224 Area Code
• 270 Area Code
• 308 Area Code
• 309 Area Code
• 312 Area Code
• 316 Area Code
• 319 Area Code
• 331 Area Code
• 364 Area Code
• 402 Area Code
• 405 Area Code
• 417 Area Code
• 423 Area Code
• 479 Area Code
• 501 Area Code
• 502 Area Code
• 515 Area Code
• 531 Area Code
• 539 Area Code
• 563 Area Code
• 573 Area Code
• 580 Area Code
• 606 Area Code
• 615 Area Code
• 618 Area Code
• 620 Area Code
• 629 Area Code
• 630 Area Code
• 636 Area Code
• 641 Area Code
• 660 Area Code
• 708 Area Code
• 712 Area Code
• 731 Area Code
• 773 Area Code
• 779 Area Code
• 785 Area Code
• 815 Area Code
• 816 Area Code
• 847 Area Code
• 859 Area Code
• 865 Area Code
• 870 Area Code
• 872 Area Code
• 901 Area Code
• 913 Area Code
• 918 Area Code
• 931 Area Code

Only One State Uses Area Code 314

• Missouri