Tualatin is located primarily in Washington County in the State of Oregon. A small portion of the city is also located in neighboring Clackamas County.
City Location
County(ies): Washington, Clackamas Incorporated in 1913 
Location: North Willamette Valley Nearest Major Highway: 1-5, 1-205 Nearest Major City: Portland, Oregon / 12 miles Estimated Drive Time: 15 minutes Source: Oregon Department of Transportation, State of Oregon Map, Oregon Blue Book
Climate
Monthly Avg. Low: 34° F Monthly Avg. High: 80° F Coldest month: January Hottest month: August Wettest month: December Driest month: July Average annual precipitation: 37.390″ Humidity: Average July afternoon humidity: 62% Average January afternoon humidity: 82% Source: Oregon Climate Service
Recreational Amenities
Golf/driving range, swimming, boating, fishing, Tualatin Commons Lake, Promenade, Tualatin River, city parks, nature trails, skate park, and library. The Tualatin Chamber of Commerce sponsors the annual Crawfish Festival in August each year. Concerts are held on Friday evenings at 6:30 p.m. at the lake at Tualatin Commons during July and August each year.