Umatilla County, county in Oregon, United States. As of 2020 county had an estimated population of 77,752 inhabitants. The county was created 160 years ago in 1862. Its county seat is "Pendleton".
There are 1 city/town in Umatilla County, OR. The largest city of Umatilla County is Echo with a population of 705.
Echo, city in Oregon, USA
Cities, Towns, Neighborhoods & Other Populated Places in Umatilla County.
|Echo||City in Oregon, USA||Umatilla||705|