Wetlands in Alameda County, California
Alameda County, California has 40,047 acres wetland mapped. The map below shows every mapped feature inside the county boundary.
Alameda County, California at a glance
| Wetland mapped | 40,047 acres |
|---|---|
| Distinct wetlands mapped | 7,111 |
| Share of the county that is wetland | 8.3% |
| Most common wetland type | Riverine (2,141) |
| Distinct wetland types | 7 |
| Largest single wetland | 3,002 acres (Estuarine and Marine Deepwater) |
Alameda County, California is home to 1,636,630 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 40,047 acres. Distinct wetlands mapped: 7,111. Share of the county that is wetland: 8.3%. Most common wetland type: Riverine (2,141). Distinct wetland types: 7. Largest single wetland: 3,002 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 Alameda County, California?
- Land Owl maps 40,047 acres wetland mapped within Alameda 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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