Property Tax Info In the Jacksonville area Duval County: City of Jacksonville City of Jacksonville Property Tax Estimator St John’s County: St Augustine St Johns County Tax Collector Property Tax Estimator Clay County: Orange Park, Green Cove Springs Clay County Property Appraiser’s Office Property Tax Estimator Nassau County: Amelia Island, Fernandina Beach Nassau County Property Appraiser Property Tax Estimator Share this:Click to email this to a friend (Opens in new window)Click to share on Facebook (Opens in new window)