Happy Valley is a suburban city in the Portland, Oregon metropolitan area. Happy Valley is close the northwest edge of Clackamas County, Oregon, United States approximately 10 miles to the southeast of downtown Portland, Oregon. The population was 23,733 at the 2020 census.

Happy Valley was originally contracted by Christian and Matilda Deardorff after receiving 640 acres from The Donation Land Claim Act of 1850 in Clackamas County surrounded by a cinder cone volcano well along name Mt. Scott and a knoll innovative named Scouters’ Mountain. The established region become known as Deardorff Valley, Deardorff Settlement and most popularly Christilla Valley (name formed by combining “Chris” from Christian and “Tilla” from Matilda).

The city was officially incorporated in 1965 and remained a little community until the late 1990s, when it became one of the fastest-growing cities in Oregon.

The City of Happy Valley is governed by the Happy Valley City Council which comprises a mayor (currently Tom Ellis), city council president (currently David Emami), and three further city council members (currently Joshua Callahan, Brett Sherman, and David Golobay). Mayor and Council members are elected to four year terms that are staggered to ensure at least two members are experienced at anything times. There is furthermore a planning commission, as well as a Park Advisory/Urban Forestry Commission and Citizen Traffic and Public Safety Committee.