1850Government
== History ==
Happy Valley was originally settled by Christian and Matilda Deardorff after receiving 640 acres from The Donation Land Claim Act of 1850 in Clackamas County betwe...
1965Government
The city was officially incorporated in 1965 and remained a small community until the late 1990s, when it became one of the fastest-growing cities in Oregon.
2000History
=== 2000 census ===
As of the 2000 census, there were 4,519 people, 1,431 households, and 1,302 families living in the city.
2010History
=== 2010 census ===
As of the 2010 census, there were 13,903 people, 4,408 households, and 3,724 families living in the city.
2020History
=== Racial and ethnic composition ===
=== 2020 census ===
As of the 2020 census, there were 23,733 people, 7,813 households, and 6,233 families residing in the city.
2023History
== Demographics ==
As of the 2023 American Community Survey, there are 8,701 estimated households in Happy Valley with an average of 2.93 persons per household.