Its See city is Kingston, Ontario, and its cathedral is St. George's, Kingston. The diocese is not coterminous with the Canadian civil province of Ontario, but rather encompasses approximately 17,700 square kilometres of it, comprising the counties of Prince Edward, Hastings, Lennox and Addington, Frontenac, and Leeds and Grenville.
Located in Kingston, Ontario, this diocese has a cathedral called St. George's, Kingston. Unlike the Canadian province of Ontario, its boundaries do not align, but rather cover an area of approximately 17,700 square kilometers, including the counties of Prince Edward, Hastings, Lennox and Addington, Frontenac, and Leeds and Grenville.