Town Hall Address 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States- Hunterdon County Website https://www.califonboro.org/ County Clerk 908-832-7850 Ext. 201 Monday - Friday: 9:00 A.M. - 3:00 P.M. 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States Assessor 908-832-7850 Ext. 205 Third Monday: 10:30 A.M. - 12:00 P.M. 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States Tax Collector 908-832-7850 Ext. 206 Tuesday: 1:00 P.M. - 4:00 P.M. 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States Attorney 908-735-8876 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States Mayor 908-832-7850 Ext. 207 39 Academy St. P.O. Box 368 Califon, NJ 07830-0368 United States Municipal Court 908-876-3852 43 Schooley's Mtn. Rd. Long Valley, NJ 07853 United States County Hunterdon