Ashtabula is a city located in the northeastern part of Ohio, on the southern shore of Lake Erie. It is the county seat of Ashtabula County and has a population of approximately 19, 000 people. The crossword solutions for the term Ashtabula are ERIE (4 letters) and OHIO (4 letters). ERIE is the name of the lake that borders Ashtabula to the north, while OHIO is the name of the state in which Ashtabula is located.