8:00 am-5:00 pm Monday-Friday
From Hermiston: Head north on US-395 about 7.3 miles. Turn left onto US-395 N/US-730/6th Street. Turn left onto I Street. City Hall should be on your left.
The City of Umatilla was first incorporated as Umatilla City on October 24, 1864 with a mayor, five aldermen, recorder, marshal and treasurer.