Harper is an unincorporated community in Malheur County, Oregon, United States. Although it is unincorporated, it has a post office with a ZIP code 97906. Harper lies off U.S. Route 20 southwest of Vale.
Climate
Harper has a continental cold desert climate (Köppen BWk), with cold, snowy winters and hot, sunny summers.
Transportation
In the 21st century, Harper is a stop on the Eastern POINT intercity bus line between Bend and Ontario. It makes one stop per day in each direction.
