Happy Valley, South Australia

Happy Valley
Western end of Windebanks Drive
Happy Valley
Location in greater metropolitan Adelaide
Coordinates: 35°04′59″S 138°34′01″E / 35.083°S 138.567°E / -35.083; 138.567
CountryAustralia
StateSouth Australia
RegionSouthern Adelaide
CityAdelaide
LGA
Location
Government
 • State electorates
 • Federal division
Population
 • Total11,420 (SAL 2021)
Postcode
5159
CountyAdelaide
Suburbs around Happy Valley
O'Halloran Hill Flagstaff Hill Aberfoyle Park
Reynella East Happy Valley Chandlers Hill
Woodcroft Onkaparinga Hills Clarendon

Happy Valley is a metropolitan suburb of Adelaide, South Australia. It is located 20 km south of the Central Business District of Adelaide.

Within the suburb is the Happy Valley Reservoir accompanied by South Australia's largest water treatment plant, responsible for supplying water to much of the Adelaide metropolitan area.

Although it is now encompassed by suburbs, it still retains a relatively semi-rural character due to retention of native flora and vegetation surrounding the Happy Valley Reservoir, as well as parklands and golf courses along its border.