Champoeg, former town in Oregon, USA

Champoeg is a ghost town and archaeological site on the south bank of the Willamette River in Marion County, Oregon, about 5 miles southeast of Newberg. Its site, now within Champoeg State Heritage Area, preserves the street grid of 10 north–south and six east–west streets laid out around 1852, along with the Newell House and the Pioneer Mothers Memorial Cabin Museum.

Champoeg hosted the 1841 "Wolf Meetings" that began civil codes in the Willamette Valley, and on May 2, 1843, settlers voted 52 to 50 to form a provisional government with Champoeg as its capital. The town grew to include a ferry, warehouse, steamboat landing, granary and stagecoach office by 1852. On December 2, 1861, the Willamette River rose 55 feet above its summer stage, flooding the town with seven feet of water; most structures were destroyed and Champoeg was never rebuilt.

The heritage area is open year-round and has a visitor center, so orientation material is available on site. Camping is offered for tents, yurts, cabins and RVs, and the grounds support hiking, bicycling, disc golf, bird watching, picnicking, fishing and boating. Weekend interpretive programs run from late June through Labor Day weekend, and the Champoeg Promise living-history program is aimed at schoolchildren.