Unites States >> States >> Ohio
Population and Demography of Ohio
Ohio is a state in the Midwestern region of the United States and bordered by Lake Erie to the north, Pennsylvania to the east, West Virginia to the southeast, Kentucky to the southwest, Indiana to the west, and Michigan to the northwest.
Ohio is the seventh most populous state in the United States. Ohio has a population density of 282.3 people per square mile, ranking 10th in the nation, with a total land area of 40,948 square miles, which ranks 34th. As per the United States Census Bureau, the population of Ohio in 2020 is 11,799,448 (11.8 million)
Estimated population of Ohio in 2024: 11,785,935 or 11.8 million
Decadal Growth (2010-2020)
Ohio has a population growth rate of 2.3% during 2010-2020. It has had a population increase of 262,944 since 2010.
| Ohio | Census 2020 |
| Total Population | 11,799,448 (11.80 million) |
| Median age | 39.3 years |
| Population Rank | 7th |
| Total Land Area | 40,948 sq mi (106,156 km2) |
| Area Rank | 34th |
| Population Density | 282/sq mi (109/km2) |
Source: US Census Bureau 2020 and population estimate
Ohio Historical Population
In the year 1910 Population of Ohio was 4.7 million and in the Year 2020 it was 11.8 million, an increase of almost 7.1 million.
Let’s look at decade population & percentage change from the Year 1910 to 2020
| Year | Population | % Change |
| 1910 | 4,767,121 | – |
| 1920 | 5,759,394 | 20.8% |
| 1930 | 6,646,697 | 15.4% |
| 1940 | 6,907,612 | 3.9% |
| 1950 | 7,946,627 | 15% |
| 1960 | 9,706,397 | 22.1% |
| 1970 | 10,652,017 | 9.7% |
| 1980 | 10,797,630 | 1.4% |
| 1990 | 10,847,115 | 0.5% |
| 2000 | 11,353,140 | 4.7% |
| 2010 | 11,536,504 | 1.6% |
| 2020 | 11,799,448 | 2.3% |
Source: US Census 2020
Religion and affilations
Christianity is the majority religion in Ohio followed by 73% of the population. The largest Christian denomination in Ohio is Protestant (53%) followed by Roman Catholics (18%). Next comes the Unaffiliated population, 22% of the population doesn’t follow or adhere to any faith or religion.
Other non-Christian-based religions and faiths are followed by 4% of the population and include Hinduism (1%), Buddhism(1%), Jews (1%), Islam (1%), and other smaller faiths.
For more details read Religion in Ohio
Race and Ethnicity
In 2020, the White alone (non-Hispanic) population was the largest racial or ethnic group in Ohio, comprising 75.89% of the total population. It was followed by the Black or African American population whose share was 12.35%. The Hispanic or Latino population was the third largest group at 4.22%. Two or more races are at 4.25% & the Asian population is at 2.51%.
Ancestry in Ohio
As per Census Studies & estimate German, Irish, English, Americans, and Italians have made the five largest ancestry groups in Ohio. Today, nearly one-third of Ohio’s population under the age of 1 belongs to a minority group. Approximately 4.1% of the state’s residents were foreign-born.
For more Details read Race and Ethnicity in Ohio
Top Cities and Counties in Ohio
Ohio’s population is spread throughout the state with many major cities. Columbus, the capital, has the highest population with 850,000 residents, followed by Cleveland (388,072), Cincinnati (298,550), Toledo (298,550), and Akron (197,542).
The most populated county in Ohio is Franklin County with 1,291,981 residents in its boundaries, with Cuyahoga County coming in at a close second place with 1,248,514 residents.
read more about Cities and Counties in Ohio
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