... Kingston is located in southeastern Ontario, Canada. The City of Kingston and the Townships of Kingston, Ernestown and Pittsburgh combine to form Greater Kingston (population of about 141,000) located where Lake Ontario feeds into the St.Lawrence River at the gateway to the Thousand Island and the southernmost end of the Rideau Canal. home | visitor guide | staff & committees | sacraments | news & events | scriptures prayer intentions | welcome | jubilee 2000 | resources | guestbook | e-mail |