557 Area Code: Springfield, Missouri

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Area Code 557 Information

State: Missouri
Primary City: Springfield
Primary Carrier: AT&T
Other Cities: Columbia, Kansas City, O'Fallon

Neighborhood Demographics

Based on US Census data for Springfield

33.6 y/o

Median Age

Compared to the US median age of 38.7 y/o

$46K

Median Income

Compared to the US median income of $78.5K

$165.2K

Median Home Value

Compared to the US median home value of $303.4K

169.4K

Springfield Population

Compared to the US median city population of 171.9K

Active Prefixes in the 557 Area Code

About the 557 Area Code

Missouri's 557 area code is among the newer overlays planned for the southwestern part of the state, sharing geography with the long-running 417. Springfield anchors the directory's records here. The city sits on the Springfield Plateau in the southwestern Missouri Ozarks, organized around a downtown core, Missouri State University, and a substantial healthcare sector. The 557 designation, part of the North American Numbering Plan, is in the early phases of being prepared for active number assignments and shares its broader footprint with the entire 417 region.

In records the directory has compiled for 557 numbers, other Missouri cities — Columbia, Kansas City, O'Fallon, and Sedalia — appear regularly. None of those are inside the 557 footprint. The pattern reflects standard public-record dynamics across Missouri. The directory's prefix-level holdings for 557 remain in early stages, with our current coverage representing a working slice of the prefix population the code will eventually carry rather than a comprehensive count.

Springfield's home values come in below the US median, with median household income running well below the national figure. The city's median age sits a few years under the US reading, and population places Springfield among the larger cities in southern Missouri. The 557 footprint shares those demographics with 417 because both codes serve the same southwestern Missouri region in overlapping form, and the broader area's economic and demographic profile reflects healthcare, the universities, the Bass Pro Shops headquarters, and the surrounding Ozarks corridor.