Harper is an unincorporated community and census-designated place (CDP) in Malheur County, Oregon, United States.

As of the 2020 census, there were 113 people, 62 housing units, and 41 families in the CDP.

[4] The ancestry in Harper was 50.4% Irish, 13.4% German, 5.9% English, 5.0% French, 1.7% Norwegian, and 0.8% Polish.

In the 21st century, Harper is a stop on the Eastern POINT intercity bus line between Bend and Ontario.

This Malheur County, Oregon state location article is a stub.