Ohio
From just over 45,000 residents in 1800, Ohio's population grew at rates of over 10% per decade (except for the 1940 census) until the 1970 census, which recorded just over 10.65 million Ohioans. Growth then slowed for the next four decades. The United States Census Bureau estimates that the population of Ohio was 11,689,442 on July 1, 2018, a 1.33% increase since the 2010 United States Census. Ohio's population growth lags that of the entire United States, and Caucasians are found in a greater density than the United States average. , Ohio's center of population is located in Morrow County, in the county seat of Mount Gilead. This is approximately south and west of Ohio's population center in 1990.
Columbus, Ohio
Columbus ( ) is the state capital of and the most populous city in the U.S. state of Ohio. With a population of 879,170 as of 2017 estimates, it is the 14th-most populous city in the United States and one of the fastest growing large cities in the nation. This makes Columbus the third-most populous state capital in the US (after Phoenix, Arizona and Austin, Texas) and the second-most populous city in the Midwest (after Chicago, Illinois). It is the core city of the Columbus, OH Metropolitan Statistical Area, which encompasses ten counties. With a population of 2,078,725, it is Ohio's second-largest metropolitan area.