Westfall, Oregon
Westfall is an unincorporated community in Malheur County, Oregon, United States. Westfall is about west of Vale. Westfall has a post office with ZIP code 97920. History. Westfall was founded by Levi Westfall in 1870. The Moses and Mary Hart Stone House and Ranch Complex, constructed in the vicinity of Westfall in 1898, is on the National Register of Historic Places. Climate. According to the Köppen Climate Classification system, Westfall has a semi-arid climate, abbreviated "BSk" on climate maps.