Conneaut is a city in Ashtabula County, Ohio, United States, along Lake Erie at the mouth of Conneaut Creek, which is the number one steelhead trout stream in the country. The population was 12,841 at the 2010 Census. Conneaut is located in the northeastern-most corner of Ohio, bordering the state of Pennsylvania to the east and has 27 square miles (70 km2) within its corporate city limits. It is a mixture of urban areas and rural farmland. The city has over seven miles (11 km) of shoreline along Lake Erie, with beaches, boating facilities and a healthy summer tourist trade. Transportation services Conneaut via Interstate 90, which bisects the city, along with an international shipping port and three railroads.
Major industries within the city include CSP of Ohio (formerly Venture Industries), General Aluminum (automotive parts), and CW Ohio (windows and pillars). The city's historic business district and its harbor business district are not as thriving as in the past.