Cincinnati metropolitan area

Greater Cincinnati Cincinnati, OH–KY–IN Metropolitan Statistical Area
Metropolitan Statistical Area
Downtown Cincinnati along the Ohio River, viewed from Devou Park in Covington, Kentucky.
Map of Cincinnati–Wilmington, OH–KY–IN CSA   City of Cincinnati   Cincinnati, OH–KY–IN MSA   Wilmington, OH μSA
Country	United States
State	Ohio Kentucky Indiana
Largest city	Cincinnati
Counties	List In MSA: Hamilton County Butler County Warren County Clinton County Clermont County Brown County Kenton County Campbell County Boone County
Area
• Total	4,808 sq mi (12,450 km2)
Elevation	551 ft (168 m)
Population  (2015)[2]
• Metro density	469/sq mi (181/km2)
• MSA	2,256,884 (28th)[1]
	MSA/CSA = 2015, Urban = 2013
GDP [3]
• MSA	$186.1 billion (2022)
Time zone	UTC−5 (EST)
• Summer (DST)	UTC−4 (EDT)
Area code(s)	513, 283, 859, 937, 812

The Cincinnati metropolitan area (also known as the Cincinnati Tri-State area or Greater Cincinnati) is a metropolitan area with its core in Ohio and Kentucky.^[4][5] Its largest city is Cincinnati and includes surrounding counties in the U.S. states of Ohio, Kentucky, and Indiana.

The United States Census Bureau's formal name for the area is the Cincinnati, OH–KY–IN Metropolitan Statistical Area. As of the 2020 U.S. Census, the metro area had a population of 2,256,884, making Greater Cincinnati the 28th-most populous metropolitan area in the United States, and the largest metro area in Ohio, followed by Columbus and Cleveland.^[6] The Cincinnati–Wilmington, OH–KY–IN Combined Statistical Area, adds Clinton County, Ohio (defined as the Wilmington, OH micropolitan area) and, until 2023, Mason County, Kentucky (defined as the Maysville, KY micropolitan area), was part of the CSA.^[7] The Cincinnati metropolitan area is considered part of the Great Lakes Megalopolis.