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.
Cincinnati
Cincinnati ( ) is a major city in the United States state of Ohio and is the government seat of Hamilton County. Settled in 1788, the city is located at the northern side of the confluence of the Licking and Ohio rivers, the latter of which marks the state line with Kentucky. The city drives the Cincinnati–Middletown–Wilmington combined statistical area, which had a population of 2,172,191 in the 2010 census making it Ohio's largest metropolitan area. With a population of 301,301, Cincinnati is the third-largest city in Ohio and 65th in the United States. Its metropolitan area is the fastest growing economic power in the Midwestern United States based on increase of economic output and it is the 28th-biggest metropolitan statistical area in the U.S. Cincinnati is also within a half day's drive of sixty percent of the United States populace.