OHIO
HISTORIC & PROJECTED GROWTH 1790 TO 2050
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Sources: Census figures from U.S. Bureau of the Census & *Estimates from Weldon Cooper Center, Demographics Research Group
OHIO POPULATION DENSITY
Ohio Land Area - 40,861 square miles
YEAR | PEOPLE PER SQUARE MILE |
|---|---|
2020 | 288.8 |
2010 | 282.3 |
2000 | 277.8 |
1990 | 265.5 |
1980 | 264.3 |
1970 | 260.7 |
1960 | 237.5 |
1950 | 194.5 |
1940 | 169.1 |
1930 | 162.7 |
1920 | 141.0 |
1910 | 116.7 |
SOURCE: U.S. Bureau of the Census
Ohio Population News Articles
Clermont County wants to test air near Zimmer landfill to determine if it may harm resident – June 5, 2026
Are Governors Changing Course on State Data Center Policy? – June 4, 2026
Four dams holding back water as southwest Ohio manages ninth high-water event of 2026 – June 3, 2026
Where Central Ohio is growing the fastest may surprise you – June 1, 2026
Lawmakers fear Ohio EPA’s proposed data center permit could harm Lake Erie – Jan 21, 2026
Ohio farmers face weather whiplash – Feb 3, 2026
As air pollution rules sit idle, pressure grows on Cleveland City Council – Feb 3, 1926
Several immigration-related bills await Ohio lawmakers when they come back to work – Jan 28, 2026
Population growth leading to increase in emergency calls – Jan 14, 2026
Hamilton residents voice concerns about chemical plant emissions – Jan 14, 2026
Columbus officials stress water planning as region preps for population, data center boom – Oct 1, 2025
Water reservoirs key to Columbus’ growth as population booms – Sep 29, 2025
Campbell Soup admits to violating Clean Water Act 5,400 times, polluting river – Sep 18, 2025
Steel fallout creates complaints in one Tri-State city – Sep 15, 2025
Ohio drought conditions worsen across state. Will it ever rain? – Sep 11, 2025
Air Quality Alert for central Ohio expires – June 9, 2025
Cleveland population shows second year of estimated growth – May 28, 2025
A Toledo Blade investigation revealed radioactivity in the rural Ohio village of Luckey’s water – May 22, 2025
3 Ohio sheriff's departments ink agreements with ICE to aid in deportations – May 20, 2025
Climate change is already affecting Ohioans. Here's what comes next and what can be done – May 19, 2025
TNC applauds Gov. DeWine, Ohio Legislature for securing state’s energy future – May 15, 2025
As Columbus' population grows, city aims to improve traffic flow – Nov 21, 2024
Study Reveals Ohio’s Growing Struggle to Preserve Agricultural Land – Nov 14, 2024
6 Ohio Cities Named Among The 'Dirtiest Cities In America' – Nov 13, 2024
EPA awards Ohio $169M for water infrastructure improvements – Oct 30, 2024
Hundreds tackle population growth at Sustainability Summit – Oct 29, 2024
Extreme drought creeps into Franklin County, exceptional drought takes hold in Pickaway – Sept 6, 2024
Immigration FAQs – Aug 23, 2024
Sharon Lake project to resume after Great Parks approves plan to control drifting lime dust – Aug 21, 2024
Hidden Report Reveals How Workers Got Sick While Cleaning Ohio Derailment Site – Aug 14, 2024
90.3% of Ohio Lakes Are Too Polluted for Swimming – July 19, 2024
Ohio to clean up legacy pollution with $46 million in federal funding – June 14, 2024
6 large cities in Ohio experienced population growth last year. Here they are – May 27, 2024
Feds reach $310M settlement with Norfolk Southern after toxic Ohio train derailment. Here’s what else the company has to do – May 23, 2024
What new methane regulations mean for Ohio – May 21, 2024
Columbus grows again in 2023, according to new Census data, but by how much? - May 18, 2024
Columbus City Council resolution lays path for zoning changes to bring more urban density – October 10, 2023
Hot weather drives Lake Erie toxic algae bloom resurgence – October 4, 2023
How Dangerous Are Ohio Lakes? – September 25, 2023
Clark County leaders work to provide driving education for local Haitians – September 24, 2023
New school vs. old trees: Is a Cleveland park protected from development? The Wake Up for Friday, Sept. 22, 2023 – September 22, 2023
Columbus sees momentum for local tree growing plan – September 20, 2023
Counties with the most farmland in Ohio – July 2, 2023
Columbus council approves more than $11.8M to design fourth water plant to improve capacity – June 27, 2023
Northeast Ohio expected to welcome thousands of Central American, South American refugees, asylum seekers – June 19, 2023
As Columbus population grows, John Glenn International Airport plans accordingly – June 14, 2023
The Largest Landfill in Ohio Is Almost as Tall as the Eiffel Tower – June 12, 2023
Cuyahoga County among Ohio counties where residents are most concerned about climate change - Yale study – December 14, 2022
10 Largest Cities In Ohio By Population – December 2, 2022
Ohio’s largest coal plant to change coal ash handling after U.S. EPA denial – December 2, 2022
New Research Dives into Fracking’s Impact on Water Flow in Ohio – December 2, 2022
Columbus vastly outpacing the rest of Ohio in population, growth – November 15, 2022
Climate Friday | Rainfall in Toledo becoming more intense – July 8, 2022
Where are the companies in Summit County emitting the most toxic chemicals? – July 7, 2022
Houseless population of Heer Park looking for a new home following eviction – June 22, 2022
Ohio State University: As Intel Expands Into Central Ohio, Communities Must Increase Housing, Planners Say – June 11, 2022
With inflation, supply-chain kinks, plight of Ohio food banks grows – March 5, 2022
Coastal workers migrating to Ohio – February 23, 2022
Central Ohio’s growth requires innovative housing solutions, planners say – February 22, 2022
Once sleepy Clermont County booms with subdivisions, new homes – February 16, 2022
Ohio to get $140 million for electric vehicle charging stations from bipartisan infrastructure bill – February 11, 2022
