Receive a local area code
557
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Economic Overview
The 557 area code region, as an overlay for the existing 314 area code, encompasses much of the St. Louis metropolitan area in Missouri. The economy here is diverse, featuring strong sectors in healthcare, biotechnology, financial services, transportation, and manufacturing. Major employers include companies such as Boeing, Emerson Electric, and several nationally recognized hospitals and universities.
Geographical Overview
Area code 557 covers the city of St. Louis and surrounding inner suburbs in St. Louis County, Missouri. It includes notable communities such as Clayton, University City, Maplewood, and portions of other nearby municipalities. The area is defined by its proximity to the Mississippi River and its central location within the St. Louis metropolitan area.
Location Info
Area code 557 was introduced in August 2022 as an overlay to area code 314, serving the same geographic region. Its boundaries are limited to the city of St. Louis and central portions of St. Louis County, not extending into Illinois or the broader metro area. The overlay means both 314 and 557 numbers may be assigned within this footprint, necessitating 10-digit dialing for all calls.
Population Demographics
The population in the 557 area code region is diverse, with significant African American, Caucasian, and growing Hispanic communities. The area is urban and suburban, with a mix of young professionals, families, and an established older population. St. Louis is also known for its large immigrant communities and vibrant cultural scene.
Time Zone Info
Area code 557 is located entirely within the Central Time Zone (CT).
Other Area Code Details
The 557 overlay was introduced due to the exhaustion of available numbers in the 314 area code, reflecting the region's ongoing economic and technological growth. The area includes iconic St. Louis landmarks such as the Gateway Arch, Forest Park, and several major sports venues. St. Louis is historically significant for its role in westward expansion and as a transportation hub.
