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.
Meigs County, Ohio
The Ohio River creates a microclimate in its valley where temperatures tend to be moderated by the river, hence resulting in longer growing seasons compared to the rest of the county. Other microclimates, known as frost hollows or frost pockets, exist throughout the county in small isolated valleys. Nocturnal temperatures are often several degrees colder than the surrounding terrain.
As of the census of 2000, there were 23,072 people, 9,234 households, and 6,574 families residing in the county. The population density was 54 people per square mile (21/km²). There were 10,782 housing units at an average density of 25 per square mile (10/km²). The racial makeup of the county was 97.73% White, 0.69% Black or African American, 0.27% Native American, 0.10% Asian, 0.25% from other races, and 0.96% from two or more races. 0.60% of the population were Hispanic or Latino of any race.