Mission Creek
Creek at St. Paul
Location of the mouth of Mission Creek in Oregon
Location
Country	United States
State	Oregon
County	Marion County
Physical characteristics
Source	French Prairie
• location	near St. Paul
• coordinates	45°10′16″N 122°59′33″W / 45.17111°N 122.99250°W / 45.17111; -122.99250[1]
• elevation	175 ft (53 m)[2]
Mouth	Champoeg Creek
• location	near Champoeg
• coordinates	45°14′51″N 122°52′57″W / 45.24750°N 122.88250°W / 45.24750; -122.88250[1]
• elevation	72 ft (22 m)[1]
Length	9 mi (14 km)[3]

Mission Creek is a tributary, roughly 9 miles (14 km) long, of Champoeg Creek in Marion County in the U.S. state of Oregon. The creek arises southwest of St. Paul in the French Prairie region of the Willamette Valley and flows generally northeast to meet Champoeg Creek near Champoeg. The combined streams then flow less than 1 mile (1.6 km) before entering the Willamette River, 45 miles (72 km) from its confluence with the Columbia River.^[3][4]

Course

From its source on French Prairie southwest of St. Paul, the creek flows northeast, passing under River Road Northeast and then under Oregon Route 219 just east of St. Paul. After entering and exiting Mission Creek Reservoir, it passes under Buyserie Road and enters Zorn Pond. Exiting the pond, it flows under McKay Road, then through the ghost town of Champoeg and under Champoeg Road. It joins Champoeg Creek in the Champoeg State Heritage Area, a short distance from the larger creek's confluence with the Willamette River. Champoeg's Creek's mouth is at river mile (RM) 45 or river kilometer (RK) 72 of the Willamette, a tributary of the Columbia River. Mission Creek has no named tributaries.^[3][4]