Metro East

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St. Louis Metro East
Region
East St. Louis and the Gateway Geyser
Interactive Map of St. Louis–St. Charles– Farmington, MO–IL CSA St. Louis, MO–IL MSA   City of St. Louis   Greater St. Louis (Missouri)   Metro East (Illinois) Other Statistical Areas   Farmington, MO μSA   Centralia, IL μSA
Country	United States
State	Illinois
Largest city	Belleville, IL
Other cities	- O'Fallon, IL  - Granite City, IL  - Edwardsville, IL  - Alton, IL  - East St. Louis, IL
Elevation	142–390 m (466–1,280 ft)
Population  (2020)
• Total	681,678
Time zone	UTC−6 (CST)
• Summer (DST)	UTC−5 (CDT)
Area code(s)	217, 314, 447, 557, 573, 618, 636, 730

The Metro East is an urban area in Southern Illinois, United States that contains the eastern and northern suburbs and exurbs of St. Louis, Missouri. It encompasses five counties in the Greater St. Louis area and constitutes the second-most populous urban area in Illinois. The region's most populated city is Belleville, with 42,404 residents.^[1]