Wetlands in San Diego County, California

San Diego County, California has 94,939 acres wetland mapped. The map below shows every mapped feature inside the county boundary.

San Diego County, California at a glance

Wetland mapped94,939 acres
Distinct wetlands mapped36,311
Share of the county that is wetland3.5%
Most common wetland typeRiverine (17,349)
Distinct wetland types7
Largest single wetland10,259 acres (Estuarine and Marine Deepwater)

San Diego County, California is home to 3,282,248 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 94,939 acres. Distinct wetlands mapped: 36,311. Share of the county that is wetland: 3.5%. Most common wetland type: Riverine (17,349). Distinct wetland types: 7. Largest single wetland: 10,259 acres (Estuarine and Marine Deepwater). 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 San Diego County, California?
Land Owl maps 94,939 acres wetland mapped within San Diego County, California.
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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