There are 18 cities in Umatilla County, Oregon.

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City
Rank
State
2024 Population
2020 Census
Annual Change
Density (mi²)
Area (mi²)
Hermiston1Oregon19,42319,426 2,3748.18
Pendleton2Oregon17,24817,0200.52%1,47111.72
Umatilla3Oregon7,8207,3841.23%1,6064.87
Milton-Freewater4Oregon7,0247,147-0.48%3,5281.99
Stanfield5Oregon2,1142,145-0.42%1,3781.53
Pilot Rock6Oregon1,3181,335-0.38%9011.46
Athena7Oregon1,2031,210-0.17%2,1140.57
Mission8Oregon1,024888 1357.61
Weston9Oregon697706-0.29%1,0270.68
Echo10Oregon627634-0.32%1,0830.58
Umapine11Oregon596537 1803.31
Tutuilla12Oregon395360 2020.05
Adams13Oregon385389-0.52%1,0850.35
Gopher Flats14Oregon384327 1822.11
Riverside15Oregon352276 5750.61
Kirkpatrick16Oregon242223 683.58
Helix17Oregon189191-0.53%1,4650.13
Ukiah18Oregon166164 6830.24
showing: 18 rows

Cities in Umatilla County, Oregon by Population (2024)

What is the largest city in Umatilla County, Oregon?

Hermiston is the largest city in Umatilla County.

What is the smallest city in Umatilla County, Oregon?

Ukiah is the smallest city in Umatilla County.

How many cities are in Umatilla County?

There are 18 cities in Umatilla County, Oregon.

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