United Counties of Leeds and Grenville

The United Counties of Leeds and Grenville, commonly known as Leeds and Grenville, is a county in Ontario, Canada, in the Eastern Ontario subregion of Southern Ontario. It fronts on the Saint Lawrence River and the international boundary between Canada and the United States, opposite of the State of New York. The county seat is Brockville. The county was formed by the union of the historical counties of Leeds and Grenville in 1850.

Leeds Grenville
United Counties of Leeds and Grenville
Official seal of Leeds Grenville
Location of Leeds and Grenville United Counties
Location of Leeds and Grenville United Counties
Coordinates: 44°50′N 75°40′W / 44.833°N 75.667°W / 44.833; -75.667
RegionEastern Ontario
Formed1 January 1850
County seatBrockville
 • Land3,350.08 km2 (1,293.47 sq mi)
 • Total69,819
 • Density20.8/km2 (54/sq mi)
 • Population (census division)
Time zoneUTC−05:00 (EST)
 • Summer (DST)UTC−04:00 (EDT)



There are 10 municipalities in Leeds and Grenville (in order of population):

The city of Brockville and towns of Gananoque and Prescott are part of the Leeds and Grenville census division but are independent of the county.

Historical townships




As a census division in the 2021 Census of Population conducted by Statistics Canada, the United Counties of Leeds and Grenville had a population of 104,070 living in 44,618 of its 49,557 total private dwellings, a change of 3.5% from its 2016 population of 100,527. With a land area of 3,355.61 km2 (1,295.61 sq mi), it had a population density of 31.0/km2 (80.3/sq mi) in 2021.[4]

Canada census – United Counties of Leeds and Grenville community profile
Population100,546 (+1.2% from 2011)99,306 (0.1% from 2006)
Land area3,382.89 km2 (1,306.14 sq mi)3,383.92 km2 (1,306.54 sq mi)
Population density29.7/km2 (77/sq mi)29.3/km2 (76/sq mi)
Median age49.3 (M: 48.4, F: 50.2)46.7 (M: 45.8, F: 47.4)
Private dwellings48.226 (total)  45,938 (total) 
Median household income
References: 2016[5] 2011[2] earlier[6][7]

Historic populations:[7]

  • Population in 2001: 96,606
  • Population in 1996: 96,284

County courthouse


William Buell granted the land for construction of the Courthouse. It is set atop a hill rising from the Saint Lawrence River. A broad boulevard extends to the main street. The Brockville Courthouse, one of the oldest in Ontario, was erected in 1842. The original plan had been to build a courthouse in the township of Johnstown but the land there was too swampy for construction. Instead, the Courthouse was built in the township of Elizabethtown.

The figure of Justice, a blind-folded woman holding the scales of justice, was carved by master carpenter William Holmes in 1844. This statue was named "Sally Grant" by Paul Glasford, the chair of the building committee, in honour of the woman who posed as the model. It was erected in 1845. However, the statue was damaged by Hurricane Hazel and by 1956, the statue was rotting. The original statue is on display at the Westport museum. A replica carved by Robert Kerr of Smiths Falls was placed atop the Courthouse in 1982.



Major highways




The town of Smiths Falls is mostly located in Lanark County, while parts of the southern areas of the town are in the township of Rideau Lakes in the United Counties of Leeds and Grenville.

See also



  1. ^ "Leeds and Grenville United counties census profile". 2011 Census of Population. Statistics Canada. Retrieved 2012-03-21.
  2. ^ a b "2011 Community Profiles". 2011 Canadian Census. Statistics Canada. March 21, 2019. Retrieved 2012-03-21.
  3. ^ a b 1861 Map of the United Counties of Leeds and Grenville. Boston Public Library collection. Accessed 26 August 2023.
  4. ^ "Population and dwelling counts: Canada and census divisions". Statistics Canada. February 9, 2022. Retrieved April 2, 2022.
  5. ^ "2016 Community Profiles". 2016 Canadian Census. Statistics Canada. August 12, 2021.
  6. ^ "2006 Community Profiles". 2006 Canadian Census. Statistics Canada. August 20, 2019.
  7. ^ a b "2001 Community Profiles". 2001 Canadian Census. Statistics Canada. July 18, 2021.