Condados en Ohio
- Adams
- Allen
- Ashland
- Ashtabula
- Athens
- Auglaize
- Belmont
- Brown
- Butler
- Carroll
- Champaign
- Clark
- Clermont
- Clinton
- Columbiana
- Coshocton
- Crawford
- Cuyahoga
- Darke
- Defiance
- Delaware
- Erie
- Fairfield
- Fayette
- Franklin
- Fulton
- Gallia
- Geauga
- Greene
- Guernsey
- Hamilton
- Hancock
- Hardin
- Harrison
- Henry
- Highland
- Hocking
- Holmes
- Huron
- Jackson
- Jefferson
- Knox
- Lake
- Lawrence
- Licking
- Logan
- Lorain
- Lucas
- Madison
- Mahoning
- Marion
- Medina
- Meigs
- Mercer
- Miami
- Monroe
- Montgomery
- Morgan
- Morrow
- Muskingum
- Noble
- Ottawa
- Paulding
- Perry
- Pickaway
- Pike
- Portage
- Preble
- Putnam
- Richland
- Ross
- Sandusky
- Scioto
- Seneca
- Shelby
- Stark
- Summit
- Trumbull
- Tuscarawas
- Union
- Van Wert
- Vinton
- Warren
- Washington
- Wayne
- Williams
- Wood
- Wyandot
Localidades en Ohio. Página 21 de 32
- Oak Hill
- Oak Run Township Madison County
- Oberlin
- Obetz
- Oceola
- Octa
- Ohio Township Monroe County
- Ohio City
- Ohio Township Clermont County
- Ohio Township Gallia County
- Okeana
- Okolona
- Olde West Chester
- Old Fort
- Old Washington
- Oliver Township Adams County
- Olivesburg
- Olmsted Falls
- Olmsted Township Cuyahoga County
- Ontario
- Orange
- Orangeville
- Orange Township Ashland County
- Orange Township Carroll County
- Orange Township Delaware County
- Orange Township Hancock County
- Oregon
- Oregonia
- Orient
- Orrville
- Orwell
- Orwell Township Ashtabula County
- Osgood
- Osnaburg Township Stark County
- Ostrander
- Ottawa
- Ottawa Hills
- Ottoville
- Otway
- Overpeck
- Owensville
- Oxford
- Oxford Township Butler County
- Oxford Township Coshocton County
- Oxford Township Delaware County
- Oxford Township Erie County
- Oxford Township Tuscarawas County
- Painesville
- Painesville Township Lake County
- Paint Township Highland County
- Paint Township Madison County
- Paint Township Ross County
- Paint Township Wayne County
- Palestine
- Palmer Township Washington County
- Palmyra Township Portage County
- Pandora
- Paris Township Portage County
- Paris Township Stark County
- Paris Township Union County
- Parkman
- Parkman Township Geauga County
- Park Layne
- Parma
- Parma Heights
- Parral
- Pataskala
- Patriot
- Patterson
- Patterson Township Darke County
- Paulding
- Paxton Township Ross County
- Payne
- Pease Township Belmont County
- Pedro
- Peebles
- Pemberton
- Pemberville
- Penfield Township Lorain County
- Peninsula