Cities and Towns in Washington County, Oregon
Founded in 1843, Washington County is one of 36 counties in the state of Oregon. Historically, Washington County was one of the original four districts of the Oregon Country (as Twality District). The city of Hillsboro is the county seat. With FIPS code of 67, Washington County has a population of 600,811 and area of 724 square miles (1,875 km²).
List of all cities in Washington County, OR alphabetically
| City/Town | Postal Code | Area Code |
| Aloha, OR | 97006 | 503/971 |
| 97007 | 503/971 | |
| Banks, OR | 97106 | 503/971 |
| 97109 | 503/971 | |
| 97125 | 503/971 | |
| Beaverton, OR | 97005 | 503/971 |
| 97006 | 503/971 | |
| 97007 | 503/971 | |
| 97008 | 503/971 | |
| 97075 | 503/971 | |
| 97076 | 503/971 | |
| 97077 | 503/971 | |
| Buxton, OR | 97109 | 503/971 |
| Cedar Mill, OR | 97229 | 503/971 |
| 97291 | 503/971 | |
| Cornelius, OR | 97113 | 503/971 |
| 97123 | 503/971 | |
| Durham, OR | 97224 | 503/971 |
| Forest Grove, OR | 97116 | 503/971 |
| Forest Heights, OR | 97229 | 503/971 |
| Gales Creek, OR | 97117 | 503/971 |
| Gaston, OR | 97119 | 503/971 |
| Glenwood, OR | 97116 | 503/971 |
| Helvetia, OR | 97124 | 503/971 |
| Hillsboro, OR | 97006 | 503/971 |
| 97007 | 503/971 | |
| 97123 | 503/971 | |
| 97124 | 503/971 | |
| King City, OR | 97224 | 503/971 |
| Manning, OR | 97125 | 503/971 |
| North Plns, OR | 97133 | 503/971 |
| Orenco, OR | 97123 | 503/971 |
| 97124 | 503/971 | |
| Portland, OR | 97223 | 503/971 |
| 97224 | 503/971 | |
| 97225 | 503/971 | |
| 97229 | 503/971 | |
| 97281 | 503/971 | |
| 97291 | 503/971 | |
| 97298 | 503/971 | |
| Progress, OR | 97005 | 503/971 |
| Rock Creek, OR | 97229 | 503/971 |
| Scholls, OR | 97123 | 503/971 |
| Sherwood, OR | 97140 | 503/971 |
| Tektronix, OR | 97077 | 503/971 |
| Tigard, OR | 97223 | 503/971 |
| 97224 | 503/971 | |
| 97281 | 503/971 | |
| Timber, OR | 97144 | 503/971 |
| Tualatin, OR | 97062 | 503/971 |
| Verboort, OR | 97116 | 503/971 |
| West Slope, OR | 97225 | 503/971 |
| West Union, OR | 97124 | 503/971 |
Major Cities and Towns in Washington County, Oregon
Hillsboro
Overview
Hillsboro, the county seat of Washington County, is Oregon’s fifth-largest city and a hub for technology and agriculture. Often called the “Silicon Forest,” Hillsboro is home to numerous high-tech companies, including Intel, which anchors its economy. Settled in the mid-19th century, Hillsboro grew from a modest farming community into a vibrant, diverse city with a strong emphasis on innovation. Major schools include Hillsboro High School and the Hillsboro School District, which serves a large student population. Landmarks include the Rice Northwest Museum of Rocks and Minerals, the Venetian Theatre, and the sprawling Tualatin Hills Nature Park.
Key Information
- Area: 25.7 square miles
- Population: Approximately 106,000
- Zip Codes: 97123, 97124
- Latitude and Longitude: 45.5229° N, 122.9898° W
Beaverton
Overview
Beaverton, located just west of Portland, is a dynamic city known for its suburban charm and economic activity. Founded in the late 19th century, Beaverton has transitioned from an agricultural center to a thriving urban area. It is home to Nike’s world headquarters and other prominent businesses. Beaverton boasts a diverse population and vibrant cultural scene, with the Beaverton Farmers Market being a community favorite. Schools such as Southridge High School and Beaverton High School highlight its commitment to education. Landmarks include the Beaverton City Library, the Cedar Hills Crossing shopping center, and numerous parks, including Tualatin Hills Nature Park.
Key Information
- Area: 19.7 square miles
- Population: Approximately 100,000
- Zip Codes: 97005, 97006, 97007, 97008
- Latitude and Longitude: 45.4857° N, 122.8037° W
Tigard
Overview
Tigard, situated in the Tualatin Valley, combines suburban convenience with a historic downtown. Incorporated in 1961, Tigard has grown from a small farming community to a bustling suburban city with a focus on business and quality of life. Tigard-Tualatin School District serves the city, with Tigard High School being a notable institution. Landmarks include the Tigard Festival of Balloons, Cook Park along the Tualatin River, and the Broadway Rose Theatre Company, which offers vibrant cultural programming.
Key Information
- Area: 12.4 square miles
- Population: Approximately 56,000
- Zip Codes: 97223, 97224
- Latitude and Longitude: 45.4312° N, 122.7715° W
Forest Grove
Overview
Forest Grove, located in the western part of Washington County, was established in the mid-19th century as a farming and educational hub. It is home to Pacific University, one of the oldest universities in Oregon, which significantly influences the city’s culture and economy. Forest Grove retains its small-town charm, with historic homes and tree-lined streets. Major schools include Forest Grove High School. Key landmarks include the David Hill Vineyard and Winery, the Forest Grove Farmers Market, and the historic Alvin T. Smith House.
Key Information
- Area: 5.9 square miles
- Population: Approximately 26,000
- Zip Codes: 97116
- Latitude and Longitude: 45.5196° N, 123.1101° W
Tualatin
Overview
Tualatin, straddling the Washington and Clackamas County line, is known for its scenic beauty and vibrant community. Originally a farming settlement, Tualatin has evolved into a modern city with a blend of residential and commercial developments. The city is part of the Tigard-Tualatin School District, with Tualatin High School being a key educational institution. Landmarks include the Tualatin River Greenway, the Heritage Center, and the annual West Coast Giant Pumpkin Regatta, a quirky and beloved local event.
Key Information
- Area: 8.23 square miles
- Population: Approximately 27,000
- Zip Codes: 97062
- Latitude and Longitude: 45.3842° N, 122.7665° W
Each city in Washington County contributes to the region’s blend of historical richness, educational excellence, and cultural vibrancy, making it a dynamic area in Oregon.
