Monitor, Oregon is an unincorporated community in Marion County, Oregon, United States It is about 3 miles (5 km) northeast of the city of Mt. Angel, on Butte Creek in the Willamette Valley. It is part of the Salem Metropolitan Statistical Area. Monitor is surrounded by farmland. Each spring, a tulip festival is held at the Wooden Shoe Tulip Farm about one mile north of the town center, across Butte Creek in Clackamas County. Monitor shares its ZIP codes with the nearby cities of Woodburn (97071) and Mt. Angel (97362).