| Business | Founded | Contacts |
|---|---|---|
| Warren County Personnel Department | 1924 | 3 |
| Warren County Horticulture Department | - | 1 |
| Warren County Accounts Payable | - | 2 |
| Warren County CO-OP Extension | - | 2 |
| Warren County Engineers | - | 2 |
| Warren County Planning | - | 1 |
| Warren County Public Info | - | 1 |
| Warren County Purchasing | - | 1 |
| Warren County Senior Services Division | - | 3 |
| Family & Consumer Sciences | 2011 | 1 |
| County Engineers Office | - | 1 |
| Warren County, New Jersey, Government | 1825 | 1 |
| Warren County Bridge Dept | - | 1 |
| Warren County Nutrition Prgrm | - | 1 |
| Warren County Main Number | - | - |
| Hunterdon County, New J. | - | 1 |
| Wayne Dumont, Jr. Administration Building | - | - |
| Explore Warren County Tourism Partnership | - | - |
| Warren County Economic Development Committee | - | - |
| See more details on www.addresshistory.com | ||