
Keizer
- County:
- Marion County
- County Seat:
- No
- Area (mi²):
- 7.185
- State:
- Oregon
Keizer is a city located in Marion County, Oregon. Keizer has a 2025 population of 38,048. Keizer is currently declining at a rate of -0.67% annually and its population has decreased by -3.28% since the most recent census, which recorded a population of 39,338 in 2020.
The average household income in Keizer is $97,152 with a poverty rate of 8.43%. The median age in Keizer is 37 years: 37 years for males, and 36.9 years for females.