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Umatilla County, Oregon

Umatilla County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF
Government Unit Unit Type Jurisdiction Role Contact / Address
GUS Population: 80,491 (2024)
ID: 183795
County Official County Government
Contact: PLANNING DEPARTMENT
216 SE 4TH ST, RM 104, PENDLETON OR 97801-2699
GUS Population: 19,746 (2024)
ID: 133232
Municipal Municipal Government Within County
Contact: MAYOR
180 NE 2ND ST, HERMISTON OR 97838-1860
GUS Population: 17,026 (2024)
ID: 173694
Municipal Municipal Government Within County
Contact: CITY MANAGER
500 SW DORION AVE, PENDLETON OR 97801-2035
GUS Population: 7,899 (2024)
ID: 209211
Municipal Municipal Government Within County
Contact: FINANCE DIRECTOR
PO BOX 130, UMATILLA OR 97882-0130
GUS Population: 7,011 (2024)
ID: 173693
Municipal Municipal Government Within County
Contact: CITY PLANNER
PO BOX 6, MILTON FREEWATER OR 97862-0006
GUS Population: 2,118 (2024)
ID: 133233
Municipal Municipal Government Within County
Contact: CITY MANAGER
PO BOX 369, STANFIELD OR 97875-0369
GUS Population: 1,313 (2024)
ID: 184239
Municipal Municipal Government Within County
Contact: CITY RECORDER
PO BOX 130, PILOT ROCK OR 97868-0130
CITY OF ATHENA
GUS Population: 1,184 (2024)
ID: 173691
Municipal Municipal Government Within County
Contact: RECORDER TREASURER
PO BOX 686, ATHENA OR 97813-0686
GUS Population: 705 (2024)
ID: 173695
Municipal Municipal Government Within County
Contact: CITY RECORDER
PO BOX 579, WESTON OR 97886-0579
GUS Population: 627 (2024)
ID: 209210
Municipal Municipal Government Within County
Contact: CITY ADMINISTRATOR-RECORDER
PO BOX 9, ECHO OR 97826-0009
GUS Population: 389 (2024)
ID: 202434
Municipal Municipal Government Within County
Contact: RECORDER
PO BOX 20, ADAMS OR 97810-0020
CITY OF UKIAH
GUS Population: 223 (2024)
ID: 111618
Municipal Municipal Government Within County
Contact: CITY RECORDER
PO BOX 265, UKIAH OR 97880-0265
CITY OF HELIX
GUS Population: 192 (2024)
ID: 173692
Municipal Municipal Government Within County
Contact: CITY RECORDER
PO BOX 323, HELIX OR 97835