Town Hall Address United States- Nassau County Website https://www.townofcallahan-fl.gov/ County Clerk (904) 548-4600 https://www.nassauclerk.org/ Mon - Fri: 8:30am - 5pm 76347 Veteran's Way Yulee, 32097 United States Tax Collector (904) 491-7400 https://www.nassautaxes.com/ Mon - Fri: 9am - 5pm 416 Centre St Fernandina Beach, 32034 United States Assessor (904) 491-7300 http://www.nassauflpa.com/ Mon - Fri: 8am - 5pm 96135 Nassau Place, Suite 4 Yulee, 32097 United States County Nassau