
John Day
- County:
- Grant County
- County Seat:
- No
- Area (mi²):
- 2.26
- State:
- Oregon
John Day is a city located in Grant County, Oregon. John Day has a 2025 population of 1,654. John Day is currently declining at a rate of -0.12% annually and its population has decreased by -0.72% since the most recent census, which recorded a population of 1,666 in 2020.
The average household income in John Day is $79,322 with a poverty rate of 14.98%. The median age in John Day is 42.9 years: 43.6 years for males, and 42.4 years for females.