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.
Weirton–Steubenville metropolitan area
The Weirton–Steubenville, WV-OH Metropolitan Statistical Area, also known as the Upper Ohio Valley, is a metropolitan area consisting of two counties in the Northern Panhandle of West Virginia and one in Ohio, anchored by the cities of Weirton and Steubenville. As of the 2010 census, the MSA had a population of 124,454. In 2017, the population was estimated to have gone down to 118,250. This puts it at 329th largest in the United States.As of the census of 2000, there were 132,008 people, 54,491 households, and 37,250 families residing within the MSA. The racial makeup of the MSA was 94.50% White, 3.91% African American, 0.16% Native American, 0.34% Asian, 0.02% Pacific Islander, 0.19% from other races, and 0.88% from two or more races. Hispanic or Latino of any race were 0.61% of the population.