It happened around 2:13 a.m. Saturday on the 400 block of Lombard Street.
Police say the driver of a 2014 Ford Explorer hit the officer while making a turn onto 5th Street.
The 33-year-old male officer was transported to a nearby hospital and placed in stable condition.
No other injuries were reported.
The driver of the Ford did stay at the scene.
It's unclear if any charges will be filed.