Umatilla County, Oregon

Umatilla County (/ˌjuːməˈtɪlə/) is a county in the U.S. state of Oregon. The county seat is Umatilla. In 2020, 80,075 people lived there.[1] The county includes 3,231 square miles (8,369 km2) of which 3,215 is land and the rest is water.

Umatilla County, Oregon
Map
Map of Oregon highlighting Umatilla County
Location in the state of Oregon
Map of the USA highlighting Oregon
Oregon's location in the U.S.
Statistics
Founded September 27, 1862
Seat Pendleton
Largest City Hermiston
Area
 - Total
 - Land
 - Water

3,231 sq mi (8,368 km²)
3,216 sq mi (8,329 km²)
16 sq mi (41 km²), 0.5%
Population
 -  Density


23/sq mi (9/km²)
Time zone Pacific: UTC-8/-7
Website: www.co.umatilla.or.us
Named for: Umatilla River

Umatilla County, Oregon Media

References

  1. "QuickFacts: Umatilla County, Oregon". United States Census Bureau. Retrieved January 20, 2024.