| Business | Phone |
| Jefferson Township Municipal Minnisink Rd, Lake Hopatcong 7849 | (973) 663-3241 |
| Jefferson Township Public Hlth 57 Minnisink Rd, Lake Hopatcong 7849 | (973) 663-0700 |
| Jefferson Twp Sewer Dept 1033 Weldon Rd, Lake Hopatcong 7849 | (973) 208-6144 |
| Milton First Aid Squad 209 S Maryland Ave, Lake Hopatcong 7849 | (973) 663-3265 |
| Milton First Aid Squad 3 Edison Rd, Lake Hopatcong 7849 | (973) 663-3265 |