Mentor-on-the-Lake, Ohio, United States [City]; population was 8,271 in 1990; housing units was 3,021 in 1990; location is 41°43'N 81°22'W; land area is 1.63 square miles (1,046 acres); water area is 0.03 square miles (22 acres); FIPS code is 49098 [SourceCBP]