REGION ONE - Morris • Passaic • Sussex
| Region One | County |
| Andover Township | Sussex |
| Boonton Town of | Morris |
| Boonton township | Morris |
| Chatham Borough | Morris |
| Chatham Township | Morris |
| Chester Borough | Morris |
| Chester Township | Morris |
| Denville Township | Morris |
| Dover Township | Morris |
| Florham Park | Morris |
| Frankford Township | Sussex |
| Hanover Township | Morris |
| Lafayette Township | Sussex |
| Library of the Chathams | Morris |
| Lincoln Park Borough | Morris |
| Long Hill Township | Morris |
| Mendham Borough | Morris |
| Mendham Township | Morris |
| Montville Township | Morris |
| Morris Plains Borough | Morris |
| Mount Olive Township | Morris |
| Mountain Lakes Borough | Morris |
| Netcong Borough | Morris |
| Parsippany-Troy Hill | Morris |
| Passaic Valley Water Commission | Passaic |
| Pompton Lakes MUA | Passaic |
| Randolph Township | Morris |
| Rockaway Borough | Morris |
| Rockaway Township | Morris |
| Roxbury Township | Morris |
| Sparta Township | Morris |
| Stanhope | Sussex |
| Stillwater Township | Sussex |
| Vernon Township | Sussex |
| Wanaque Valley Regional Sewerage Authority | Passaic |
| Washington Township | Morris |
| Washington Township MUA | Morris |
| West Milford | Passaic |
| Wharton | Morris |
