Town Hall Address 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States- Hunterdon County Website https://www.delawaretwpnj.org/ County Clerk 609-397-3240 Ext. 205 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States Assessor 609-397-3240 Ext. 204 Wednesday: 9:30 A.M. - 9:30 P.M. & 5:30 P.M. - 7:30 P.M. 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States Tax Collector 609-397-3240 Ext. 203 Monday - Thursday: 9:00 A.M. - 3:00 P.M. 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States Attorney 609-921-6543 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States Mayor 609-397-3240 570 Rosemont Ringoes Rd. Sergeantsville, NJ 08557 United States Municipal Court 908-782-6855 1070 Hwy. 202 Ringoes, NJ 08551 United States Town Hall Hours Mon, Tue, Thurs: 8:30 am – 3:00 pm Wed: 8:30 am – 7:30 pm Fri: 8:30 am – 12:30 pm County Hunterdon