Umatilla County, Oregon

county in Oregon, United States

Umatilla County (/ˌjuːməˈtɪlə/) is a county in the U.S. state of Oregon. The county seat is Umatilla. In 2005, 73,878 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
Stafford Hansell Government Center in Hermiston
Stafford Hansell Government Center in Hermiston
Map of Oregon highlighting Umatilla County
Location within the U.S. state of Oregon
Map of the United States highlighting Oregon
Oregon's location within the U.S.
Coordinates: 45°22′30″N 118°45′05″W / 45.375131°N 118.7513661°W / 45.375131; -118.7513661
Country United States
State Oregon
FoundedSeptember 27, 1862
SeatPendleton
Largest cityHermiston
Area
 • Total3,231 sq mi (8,370 km2)
 • Land3,216 sq mi (8,330 km2)
 • Water16 sq mi (40 km2)  0.5%%
Population
 • Estimate 
(2016)
76,456
 • Density20/sq mi (9/km2)
Time zoneUTC−8 (Pacific)
 • Summer (DST)UTC−7 (PDT)
Congressional district2nd
Websitewww.co.umatilla.or.us