Kent County, area 2,458 km2 (949 sq mi) is a historic county in the Canadian province of Ontario. The county was created in 1792 and named by John Graves Simcoe in honour of the English County. The county is in an alluvial plain between Lake St. Clair, and Lake Erie, watered by two navigable streams, the Thames River and the Sydenham River. On January 1, 1998, the county, its townships, towns, and Chatham were amalgamated into the single-tier city of Chatham-Kent.