There are 5 zip codes in Morrow County, Oregon. The most populated is 97818, located in Boardman. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
978185,252Boardman
978443,633Irrigon
978362,176Heppner
97843790Ione
97839294Lexington

Zip Codes in Morrow County, Oregon by Population (2024)