Wetlands in Umatilla County, Oregon

Umatilla County, Oregon has 35,503 acres wetland mapped. The map below shows every mapped feature inside the county boundary.

Umatilla County, Oregon at a glance

Wetland mapped35,503 acres
Distinct wetlands mapped11,124
Share of the county that is wetland1.7%
Most common wetland typeRiverine (5,843)
Distinct wetland types5
Largest single wetland8,355 acres (Lake)

Umatilla County, Oregon is home to 81,119 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 35,503 acres. Distinct wetlands mapped: 11,124. Share of the county that is wetland: 1.7%. Most common wetland type: Riverine (5,843). Distinct wetland types: 5. Largest single wetland: 8,355 acres (Lake). Every feature shown on the map above is clickable, and the figures on this page are derived from the same data the map renders, so they always agree. A free Land Owl account adds parcel boundaries, ownership records, flood zones, soils, wetlands and topography over the same view.

Frequently asked questions

How many wetlands are there in Umatilla County, Oregon?
Land Owl maps 35,503 acres wetland mapped within Umatilla County, Oregon.
Is this wetlands map free to use?
Yes. This map is free to view. A free Land Owl account unlocks the other data layers, parcel boundaries and ownership records.
Where does this data come from?
Land Owl maps wetlands from the U.S. Fish & Wildlife Service National Wetlands Inventory (NWI). NWI-mapped wetlands are a screening tool, not a jurisdictional delineation — confirm any boundary with a qualified delineator before you rely on it.

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