Share of the population by age and sex, five-year groups

Population of Ohio, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2020  +1 +5

11,798,534 people lived in Ohio on July 1, 2020: the 7th-largest population among the 50 states and the District of Columbia. The median age was 39.8 years (United States: 38.7); children (18.2%) and older adults (18.0%) make up similar shares of the population. There were 96.1 men for every 100 women. Since 2010 the population has grown by 2.2%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2020
Population
11,798,534
Rank by population
7th of 51
Median age
39.8
Men per 100 women
96.1
Under 15
18.2%
15–64
63.8%
65 and over
18.0%
Child dependency
28.5
Old-age dependency
28.3
Change since 2010
+2.2%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2020
AgeMenWomenTotalShare
0-4347,577333,469681,0465.8%
5-9364,526347,487712,0136.0%
10-14384,758368,004752,7626.4%
15-19396,065379,369775,4346.6%
20-24394,714387,595782,3096.6%
25-29375,667372,664748,3316.3%
30-34374,743376,370751,1136.4%
35-39361,513366,341727,8546.2%
40-44341,275345,510686,7855.8%
45-49344,377350,090694,4675.9%
50-54363,338372,421735,7596.2%
55-59393,921413,382807,3036.8%
60-64393,858422,519816,3776.9%
65-69334,065368,515702,5806.0%
70-74259,143301,478560,6214.8%
75-79162,667205,386368,0533.1%
80-84102,537143,970246,5072.1%
85+87,539161,681249,2202.1%
How Ohio compares with similar-sized states, 2020
RankStateResidentsRelative
4 New York 20,122,262
5 Pennsylvania 12,995,576
6 Illinois 12,795,348
7 Ohio 11,798,534
8 Georgia 10,732,595
9 North Carolina 10,450,215
10 Michigan 10,072,294
Frequently asked questions about Ohio's population
What is the population of Ohio?
Ohio had an estimated 11,798,534 residents on July 1, 2020, according to the U.S. Census Bureau, Population Estimates Program. That ranks 7th among the 51 states and the District of Columbia.
What is the median age in Ohio?
The median age in Ohio was 39.8 years in 2020, the 17th oldest of the 51 states and DC. That is 1.1 years older than the national median of 38.7.
How many people in Ohio are 65 or older?
About 2,126,981 residents of Ohio (18.0%) were 65 or older in 2020, against 18.2% under 15 and 63.8% aged 15 to 64.
What does the population pyramid of Ohio show?
In 2020, Ohio: children (18.2%) and older adults (18.0%) make up similar shares of the population. There were 96.1 men for every 100 women.
How fast is the population of Ohio changing?
The population of Ohio grew by 2.2% between 2010 and 2020, and by 0.9% in the last year.
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