Wetlands in Union County, New Jersey

Union County, New Jersey has 3,671 acres wetland mapped. The map below shows every mapped feature inside the county boundary.

Union County, New Jersey at a glance

Wetland mapped3,671 acres
Distinct wetlands mapped1,895
Share of the county that is wetland5.5%
Most common wetland typeRiverine (1,021)
Distinct wetland types7
Largest single wetland280 acres (Estuarine and Marine Deepwater)

Union County, New Jersey is home to 601,863 residents. Land Owl's national wetlands layer records the following within the county boundary — Wetland mapped: 3,671 acres. Distinct wetlands mapped: 1,895. Share of the county that is wetland: 5.5%. Most common wetland type: Riverine (1,021). Distinct wetland types: 7. Largest single wetland: 280 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 Union County, New Jersey?
Land Owl maps 3,671 acres wetland mapped within Union County, New Jersey.
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 Union County

Parcel boundaries, ownership, flood zones, soils, wetlands and topography on one map.

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