County of washington

oregon

History & Founding

Washington County, nestled in the northwestern corner of Oregon, boasts a rich history intertwined with the state's westward expansion. Established in 1845, it was initially known as Polk County, named for President James K. Polk. However, a dispute arose when the county’s boundaries were redrawn, leading to a renaming in 1850 to honor George Washington, the first U.S. president. Early settlers were primarily farmers drawn by the fertile land, and the county played a crucial role in Oregon's agricultural development. An interesting anecdote from the early days recounts the tale of a lost gold nugget, supposedly buried by a prospector near the Tualatin River, which has sparked countless (unsuccessful) treasure hunts over the years, fueling local legend. The county's strategic location facilitated trade and transportation, contributing significantly to Oregon's growth as a state.

Geography & Landscape

Geographically, Washington County occupies a diverse landscape within the Willamette Valley. It lies west of Portland, bordered by the Coast Range to the west and the Tualatin River Valley to the east. The terrain varies from gently rolling hills to more rugged foothills. Several rivers, including the Tualatin, Wilson, and Rock Creek, crisscross the county, providing vital water resources. While no major mountain ranges are within the county itself, the Coast Range provides a scenic backdrop. The climate is typically mild and wet, characterized by warm, dry summers and cool, rainy winters. The area's fertile soil and abundant rainfall make it ideal for agriculture. Notable natural features include the expansive views from the hills overlooking the valley and the riparian habitats along the rivers.

Economy & Communities

The economy of Washington County is a dynamic blend of agriculture, technology, and manufacturing. Hillsboro serves as the county seat and is a significant commercial hub. Other major towns include Beaverton, Tigard, and Forest Grove. Agriculture, particularly dairy farming and the production of grass seed, remains important, although the area has largely transformed into a suburban and technological powerhouse. The presence of major technology companies like Intel and Nike has dramatically reshaped the local economy, drawing a highly skilled workforce and contributing to rapid growth. Numerous smaller manufacturers and service providers also thrive. The county is a major employer in the region, attracting residents from across the state and beyond. The character of the area is predominantly suburban, with pockets of rural farmland interspersed throughout.

Points of Interest

Points of interest in Washington County are plentiful and diverse. The Tualatin River State Park offers hiking and recreational opportunities along the river. The Washington County Museum in Hillsboro showcases the county's history and heritage. The International Rose Test Garden, while technically in Portland, is easily accessible and a major draw. Forest Grove, with its historic downtown, offers a glimpse into the county’s past. Numerous festivals and events take place throughout the year, celebrating everything from agriculture to the arts. Notable residents have included athletes, artists, and business leaders. Washington County holds the record for being one of the fastest-growing counties in Oregon, a testament to its vibrant economy and desirable quality of life.

Information

State
oregon
Type
County
Population
445,342
Land area
724 sq mi
Capital
Hillsboro
Time zone
UTC-8
FIPS
41067

20 Cities

CityPopulationElevation
Beaverton76,129189 ft (58 m)
Hillsboro70,186150 ft (46 m)
Aloha41,741214 ft (65 m)
Tigard41,223166 ft (51 m)
Tualatin22,791123 ft (37 m)
Forest Grove17,708211 ft (64 m)
Cedar Mill12,597274 ft (84 m)
Sherwood11,791205 ft (62 m)
Cornelius9,652179 ft (55 m)
Rockcreek9,404180 ft (55 m)
Oak Hills9,050-
Cedar Hills8,949640 ft (195 m)
West Slope6,442345 ft (105 m)
Raleigh Hills5,865265 ft (81 m)
Metzger3,354170 ft (52 m)
King City1,949160 ft (49 m)
North Plains1,605200 ft (61 m)
Durham1,382142 ft (43 m)
Banks1,286245 ft (75 m)
Gaston600195 ft (59 m)

Other counties in oregon