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

There are 42 Counties and 868 Municipalities in the Delaware River Basin.

Delaware: 3 Counties, 72 Municipalities in the DRB

New Jersey: 14 Counties, 211 Municipalities in the DRB

New York: 8 Counties, 63 Municipalities in the DRB

Pennsylvania: 17 Counties, 522 Municipalities in the DRB

Learn More:

   • 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)