Oregon County Maps
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Umatilla County, Oregon
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Umatilla County, Oregon Map
A detailed map of Umatilla County. Click on a nearby County to view more information about that County. County boundaries are from the U.S. Census Bureau's 2025 TIGER/Line files.
Map of Counties in Oregon
An interactive map of Counties in Oregon. Click on a County to view more information about that County. County boundaries are from the U.S. Census Bureau's 2025 TIGER/Line files.
About Umatilla County, Oregon
Umatilla County is one of the 36 counties in the U.S. state of Oregon. Its 2020 population of 80,075 ranks it as the 14th largest in Oregon, and largest in Eastern Oregon. Hermiston is the largest and fastest growing city in Umatilla County, but Pendleton remains the county seat. Umatilla County is part of the Hermiston-Pendleton, OR Micropolitan Statistical Area, which has a combined population of 94,833. It is included in the eight-county definition of Eastern Oregon.
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Snow Totals in Umatilla County, Oregon
See recent snowfall, snow depth, and records for each city and town in Umatilla County, Oregon.
About this data
- State and county boundaries
- TIGER/Line Shapefiles: States, Counties and ZIP Code Tabulation Areas (2025), U.S. Census Bureau. Boundaries of states, counties and ZIP Code Tabulation Areas, the Census Bureau's areas for ZIP codes. Updated
- County subdivision boundaries
- TIGER/Line Shapefiles: County Subdivisions and Places (2024), U.S. Census Bureau. Boundaries of towns, townships, cities and villages. Updated
- County list
- Cartographic Boundary Files: Counties (2024), U.S. Census Bureau. County names and extents, with Wikipedia links from Wikidata. Updated