Map of county & municipal boundaries in the Delaware River Basin.

There are 42 Counties and 836 Municipalities in the Delaware River Basin.

   • Delaware: 3 Counties, 37 Municipalities in the DRB

   • New Jersey: 14 Counties, 216 Municipalities in the DRB

   • New York: 8 Counties, 60 Municipalities in the DRB

   • Pennsylvania: 17 Counties, 523 Municipalities in the DRB

Learn More:

   • Map with DRB boundary to search specific locations

   • DRB County Information for all Basin States (pdf)

   • DRB Municipalities in Delaware (pdf)

   • DRB Municipalities in New Jersey (pdf)

   • DRB Municipalities in New York (pdf)

   • DRB Municipalities in Pennsylvania (pdf)

   • Municipalities Bordering the Main Stem Delaware River and Bay - Sorted by State, County, Municipality (pdf)