Polygon layer · Environmental
Wetlands inventory map at parcel resolution
National Wetlands Inventory boundaries — jurisdictional risk, mapped.
A wetlands inventory map is the cheapest version of a question that gets expensive fast. Mapped wetlands inside a footprint mean a delineation, and possibly a federal permit, and the mapping is public long before anyone walks the ground.
- Source
- USFWS
- Refresh
- Monthly
- Geometry
- Polygon
- Included from
- Complete ($499/mo)
Why Wetlands (NWI) matters
Wetlands convert buildable acres into permitting acres. Screening early usually reveals that shifting a footprint a few hundred feet avoids a Section 404 permit altogether — a design change that costs nothing in week one and is impossible in month ten.
Questions Wetlands (NWI) answers
- Are there mapped wetlands inside my proposed footprint?
- Could I redesign the layout to avoid a Section 404 permit entirely?
- How much of this parcel is realistically buildable?
What is in the Wetlands (NWI) data
Coverage: Western US mapped wetlands. Source dataset: National Wetlands Inventory (NWI).
| Field | What it tells you |
|---|---|
| Wetland type | Cowardin classification — riverine, palustrine, lacustrine and others. |
| Area | Mapped extent, which drives whether a nationwide permit or an individual permit applies. |
| Classification code | Full NWI attribute code for citation. |
How we serve Wetlands (NWI)
NWI polygons load per viewport and sit beneath the point layers so they read as terrain constraint rather than as another marker set competing for attention.
Wetlands inventory map — source, refresh and coverage
- Steward
- USFWS
- Dataset
- National Wetlands Inventory (NWI)
- Refresh cadence
- Monthly
- Coverage
- Western US mapped wetlands
- Records
- Fetched live per viewport
- Geometry
- Polygon
- Included from
- Complete ($499/mo/mo)
Who uses Wetlands (NWI)
Data Centers & AI Infrastructure
Power, water, fiber and permitting risk for every candidate site — before you send anyone to look at it.
Energy Development
Route corridors, site generation, and clear the environmental picture before the first landowner call.
Industrial & Manufacturing Siting
The same constraint stack as a data center, weighted for process load instead of compute.
Agriculture & Ranching
Know what your water is worth, how safe it is this year, and what your neighbors hold.
Legal & Title Diligence
Authoritative records, chain context and export-ready evidence for adjudication and title work.
Read Wetlands (NWI) alongside
Critical Habitat
USFWS designated habitat — the fastest way to lose two years of schedule.
Protected Areas
PAD-US conserved lands by GAP status — what is off the table, and what only looks like it.
EPA Discharge Permits
Every permitted discharger upstream of you, with their compliance history.
Water Quality Stations
Monitoring stations that tell you whether the water is usable, not just available.
Terms used on this page
See Wetlands (NWI) on the map
This layer is included from Complete ($499/mo) upward, alongside every other layer in the Complete coverage.