Wentworth County is a historic county in the Canadian province of Ontario.

It was created in 1816 in what was then Upper Canada and later Canada West. It originally consisted of seven townships which formerly belonged to Haldimand, Lincoln and York Counties.

In 1973, Wentworth County was replaced by the Regional Municipality of Hamilton-Wentworth. In 2001, the Regional Municipality and its six constituent municipalities were amalgamated as the megacity of Hamilton.

Constituent townships

Each township that was ever part of the county is listed alphabetically below along with its years of adhesion, and its previous and subsequent configurations.

• Ancaster (surveyed 1798), 1816-1973, later became a village then town and part of township to Town of Dundas
• Barton (surveyed 1792), 1816-1973, later Village and City of Hamilton
• Beverly (surveyed 1798), 1851-1973, later part to North Dumfries, Ontario and majority to Town of Flamborough
• Binbrook (surveyed 1798), 1816-1973, later one half of Glanbrook Township
• Caistor, 1845-1851, earlier and later part of Haldimand County and then Town of West Lincoln
• Flamborough East, 1851-1973, later part to City of Burlington and majority to Town of Flamborough
• Flamborough West, 1851-1973, later part to Town of Dundas and majority to Town of Flamborough
• Glanford (surveyed 1798), 1816-1873, later the other half of Glanbrook Township
• Onondaga, 1816-1851, home of the Six Nations of the Grand River
• Saltfleet (surveyed 1792), 1816-1973, later the town and city of Stoney Creek
• Seneca, 1816-1851, later part of Brant County

External links

• Changes in Wentworth County 1792-1899 (http://www.archives.gov.on.ca/english/exhibits/maps/districts.htm)