|Area Land||25.97 km2 (10.03 sq mi)|
|Density||188.8/km2 (489/sq mi)|
|Elevation||239 m (784 ft)|
|Postal code||L4B, L4C, L4E, L4S|
|Area code(s)||905, 289|
King City is an unincorporated Canadian community in King, Ontario located north of Toronto. It is the largest community in King Township, with 1,629 dwellings and a population of 4,902 as of the Canada 2006 Census.
In 1836, a settlement styled Springhill was established in King. With the arrival of the Ontario, Simcoe and Huron railway in 1853, the settlement began to expand. In 1890, the reeve of King township James Whiting Crossley incorporated King City by merging the hamlets of Springhill, Kinghorn, Laskay, and Eversley.
King City has historically been served by septic systems, which proponents of the Big Pipe view as unhygienic and unsafe. Various studies have been commissioned to study the town’s septic systems, but no clear conclusion was reached. These studies were funded by King Township, York Region, or several interested environmental groups, especially those involved with protecting the Oak Ridges Moraine.