Public lands in Delaware

3 units whose boundary reaches Delaware. They are 3 national wildlife refuges, largest first within each type.

Acreage in Delaware

National wildlife refuges
25,697 acres

Each figure is the acreage inside Delaware for one kind of unit, summed over the units listed below. A unit that crosses into another state counts only the part of its boundary that lies in Delaware.

National wildlife refuges

All national wildlife refuges →
Refuge · USFWS
Bombay Hook National Wildlife Refuge
15,472 acresNational Wildlife Refuge
Refuge · USFWS
Prime Hook National Wildlife Refuge
10,161 acresNational Wildlife Refuge
Refuge · USFWS
Supawna Meadows National Wildlife Refuge
3,680 acresAlso NJ

Boundaries come from the agencies’ own layers. A unit is listed in every state or territory its boundary reaches. Data refreshed November 1, 2026.