John day is located in Grant county Oregon with a geographic area of 2.3 square miles. The total population in John day is 1,740 with 55.1% male and 44.9% female. Children under age 5 represent 3.9% of the population, under age 18 equal 18.9% of the population and over age 65 is 20.4% of the population. The median household income is $50,625, per capita income is $30,425. There are a total of 874 housing units with 65.6% owner occupied. Education includes 28.6% of residents that are high school graduates and 23.2% with a bachelor's degree or higher. The average temperature in John day in the summer is 65 degrees, and in the winter 35 degrees.
