Mount Vernon, Oregon
…total area of 0.68 square miles (1.76 km2), all land. It is located along U.S. Route 26 on the John Day River about 8 miles (13 km) west of the city of John Day. As of the 2020 census, Mount Vernon had a population of 548. The median age was 50.3 years. 19.2% of residents were under the age of 18 and 27.7% of…