Campbell, Ohio is a small city located in Mahoning County. The climate in Campbell is classified as humid continental, with warm summers and cold winters. The city is situated near the Mahoning River, which is an important hydrological feature. The river is known to have high levels of total dissolved solids, sulfate, and chloride due to industrial activities in the area. Despite this, there are opportunities for outdoor recreation such as fishing and boating on the Mahoning River. Additionally, the city has several parks and recreation areas, including Roosevelt Park and Campbell City Park, which offer sports fields, playgrounds, and picnic areas.