La ville de Columbus (prononcé en anglais : / k ə ˈ l ʌ m b ə s /) est la capitale de l'État de l'Ohio, aux États-Unis, à la confluence des rivières Scioto et Olentangy.C'est la ville la plus peuplée de l'Ohio avec une population de 905 748 habitants selon le Bureau du recensement des États-Unis en 2020 et l'une des plus importantes de la région du Midwest.

Marion is a city in and the county seat of Marion County, Ohio, United States. The municipality is located in north-central Ohio, approximately 50 miles (80 km) north of Columbus.. The population was 36,837 at the 2010 census, and is estimated to be 35,883 in 2019.It is the largest city in Marion County and the principal city of the Marion, OH Micropolitan Statistical Area.

Warren is a city in and the county seat of Trumbull County, Ohio, United States. The municipality is located in northeastern Ohio, approximately 14 miles (23 km) northwest of Youngstown and 56 miles (90 km) southeast of Cleveland.The population was 41,558 at the 2010 census.Warren is the second largest city in the Youngstown-Warren-Boardman, OH-PA Metropolitan Statistical …