The central part of the city is located between the Cataraqui River to the east and the Little Cataraqui Creek to the West, with outlying areas extending in both directions. Kingston is the county seat of Frontenac County. According to the
2001 Canadian census, the population of the city proper was 114,195, while the population of the metropolitan area as a whole was 146,838 in 2001 (including Loyalist Township in the County of Lennox and Addington.)
Kingston is nicknamed the "Limestone City" because of the many historic buildings built from limestone. This also provides the name for the Limestone District School Board which serves Frontenac County and the County of Lennox and Addington.