A larger crash case from Portland is usually filed in Multnomah County Circuit Court, at the Central Courthouse, 1200 SW 1st Ave, Portland, OR 97204. The civil desk is at 971-274-0540. The court’s page is courts.oregon.gov for Multnomah County. Walk-up customer help at Multnomah locations runs on weekdays starting at 8 in the morning and wrapping up at 5, per the business-hours bulletin updated August 13, 2026 and in effect since September 10, 2025. Phone help runs in a morning window from 8:30 to 10:30, then again after 1:30 until 4.
The civil page states that civil cases with a monetary claim for less than $50,000 are subject to mandatory arbitration. Ask the clerk for the current filing fee. The East County Courthouse is at 18480 SE Stark Street, Portland, OR 97233, 971-274-0700. Confirm hours before you go.
Not every Portland mailing address sits in Multnomah County. Washington County Circuit Court is at 145 NE 2nd Avenue, Hillsboro, OR 97124, mailing 150 N 1st Avenue, MS37, at 503-846-8888. Windows are open from 8 until noon, then from 1 until 5 on weekdays, and they close on legal holidays. See the Washington County court page.
Clackamas County’s courthouse has moved to 1000 Courthouse Rd., Oregon City, OR 97045. The building opens at 7 in the morning and closes at 5 on weekdays. Public counters run from 9 until 4. The services line is 503-655-8447. Details are on the Clackamas court page.
Marion County Circuit Court is at 100 High St. NE, Salem, OR 97301, 503-588-5105. On weekdays it stays open from 8 in the morning until 5, and it is closed on holidays, per the Marion court page. Some Salem addresses, including those in ZIP Code 97304, sit in Polk County. Ask which county actually applies. Yamhill County Circuit Court is at 535 NE 5th Street, McMinnville, OR 97128, 503-434-7530. The courthouse is open from 8 until 5 on weekdays. The court office is staffed from 8 until noon and from 1 until 4, and it is closed on holidays. See the Yamhill court page.
Our courts guide walks through filing, service and the two-year clock in more detail.