Ashtabula County (/ˌæʃtəˈbjuːlə/ ASH-tə-BYU-lə) is the northeasternmost county in the U.S. state of Ohio. As of the 2020 census, the population was 97,574. The county seat is Jefferson. The county was created in 1808 and later organized in 1811. The name Ashtabula derives from the Lenape language phrase ashte-pihële, which translates to 'always enough (fish) to go around, to be given away' and is a contraction of apchi ('always') + tepi ('enough') + hële (verb of motion). Ashtabula County comprises the Ashtabula, OH Micropolitan Statistical Area, which is also included in the Cleveland–Akron–Canton, OH Combined Statistical Area.