Holbrook is an

unincorporated community An unincorporated area is a parcel of land that is not governed by a local general-purpose municipal corporation. (At p. 178.) They may be governed or serviced by an encompassing unit (such as a county) or another branch of the state (such as th ...

Multnomah County Multnomah County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the county's population was 815,428. Multnomah County is part of the Portland metropolitan area. The state's smallest and most populous county, it ...

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

, United States. It is located on

U.S. Route 30 U.S. Route 30 or U.S. Highway 30 (US 30) is an east–west main route of the United States Numbered Highway System, with the highway traveling across the Northern U.S. With a length of , it is the third-longest U.S. Highway, afte ...

about 15 miles northwest of

Portland Portland most commonly refers to: *Portland, Oregon, the most populous city in the U.S. state of Oregon *Portland, Maine, the most populous city in the U.S. state of Maine *Isle of Portland, a tied island in the English Channel Portland may also r ...

between the

Tualatin Mountains The Tualatin Mountains (also known as the West Hills or Southwest Hills of Portland) are a range on the western border of Multnomah County, Oregon, United States. A spur of the Northern Oregon Coast Range, they separate the Tualatin Basin of Wa ...

and the Multnomah Channel south of

Sauvie Island Sauvie Island is in the U.S. state of Oregon, originally named as Wapato Island or Wappatoo Island. It is the largest island along the Columbia River, at , and one of the largest river islands in the United States. It lies approximately north ...

. Holbrook's elevation is 135 feet above sea level. The community was named for pioneer Philo Holbrook, who owned a farm nearby. Holbrook had a post office from 1887 to 1933.

References

{{Multnomah County, Oregon Unincorporated communities in Multnomah County, Oregon 1887 establishments in Oregon Populated places established in 1887 Unincorporated communities in Oregon