Between 1850 and 1854, Wentworth County and
Halton County were briefly joined for government purposes as the United Counties of Wentworth and Halton although for administrative purposes, they remained distinct.
Each township that was ever part of the county is listed alphabetically below along with its years of existence, and its previous and subsequent configurations.
Ancaster, area 44,946 acres (182 km2), (surveyed 1798), 1816–1973, later became a village then town and part of township to
Town of Dundas
Barton, area 9,958 acres (40 km2). The township was surveyed 1792 and named after the English town. The township included Hamilton and existed from 1816 to 1973, later became
Village and City of Hamilton
Beverley, area 69,920 acres (283 km2). Surveyed and opened for settlement in 1798. The five northern concessions were surveyed in 1794 and the southern part in 1797. The Township was named from the town in the East Riding of Yorkshire. Community centres were:
Copetown, Lynden, Rockton and
Westover. The Township existed from 1851 to 1973, later divided with one part to
North Dumfries, Ontario and majority to
Town of Flamborough
Binbrook (surveyed 1798), existed from 1816 to 1973, later one half of
Glanbrook Township
Flamborough East, area 33,815 acres (137 km2). Both East and West Flamborough were surveyed and opened for settlement in 1792. The Township existed from 1851 to 1973, later divided with one part to
City of Burlington and majority to
Town of Flamborough
Flamborough West, area 31,028 acres (126 km2) Both East and West Flamborough were surveyed and opened for settlement in 1792. The Township existed from 1851 to 1973, later divided with one part to
Town of Dundas and majority to
Town of Flamborough
Glanford, area 23,527 acres (95 km2) Was surveyed and opened for settlement in 1798. The township was named from
Glanford-Brigg in Lincolnshire. Community centres were Glanford and Fenton. The Township existed from 1816 to 1974. The Township was later the other half of
Glanbrook Township
Saltfleet, area 28,321 acres (115 km2). Was surveyed and opened in 1792. The name was suggested by the existence of several salt water springs. The Township existed from 1816 to 1973, later the town and city of
Stoney Creek
Seneca, existed from 1816 to 1851, later part of
Brant County
Source: Province of Ontario -- A History 1615 to 1927 by
Jesse Edgar Middleton &
Fred Landon, copyright 1927, Dominion Publishing Company, Toronto]