Wetlands in Cook County, Illinois
Cook County, Illinois has 29,343 acres wetland mapped. The map below shows every mapped feature inside the county boundary.
Cook County, Illinois at a glance
| Wetland mapped | 29,343 acres |
|---|---|
| Distinct wetlands mapped | 7,445 |
| Share of the county that is wetland | 4.8% |
| Most common wetland type | Freshwater Emergent Wetland (2,562) |
| Distinct wetland types | 5 |
| Largest single wetland | 1,491 acres (Riverine) |
Cook County, Illinois is home to 5,194,625 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 29,343 acres. Distinct wetlands mapped: 7,445. Share of the county that is wetland: 4.8%. Most common wetland type: Freshwater Emergent Wetland (2,562). Distinct wetland types: 5. Largest single wetland: 1,491 acres (Riverine). 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 Cook County, Illinois?
- Land Owl maps 29,343 acres wetland mapped within Cook County, Illinois.
- 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.
See every layer over Cook County
Parcel boundaries, ownership, flood zones, soils, wetlands and topography on one map.
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