Blytheswood is a small village located in the township of Leamington (formerly Mersea) in Essex County, Ontario, Canada in southern Ontario. Leamington is a municipality in Essex County, Ontario and has a population of 28833 Essex County is a County and Census division located in Southwestern Ontario and covers an area at the southernmost tip of Canada Ontario (ɒnˈtɛrioʊ is a province located in the central part of Canada, the largest by population and second largest after Quebec Country to "Dominion of Canada" or "Canadian Federation" or anything else please read the Talk Page Ontario (ɒnˈtɛrioʊ is a province located in the central part of Canada, the largest by population and second largest after Quebec The village lies at the intersection of Highway 77 and Concession 8. Highway 77 is the name of a current King's Highway that travels from Leamington Ontario to Highway 401. Blytheswood's more recognized businesses are the Jones Popcorn family farm and Setterington's farm supply depot. Blytheswood and the surrounding area of Leamington is having a boon in greenhouse development for agricultural products supplied to H. J Heinz. It has a population of about 50 people and the school for this area is Mount Carmel-Blytheswood Public School.