US Post Office is located at 725 Dunlawton Ave, Port Orange, FL. This business specializes in Post Offices. US Post Office is open Mon, 8:05am-6pm; Tue, 8:05am-6pm; Wed, 8:05am-6pm; Thu, 8:05am-6pm; Fri, 8:05am-6pm; Sat, 9am-1pm; Sun, Closed and accepts American Express, Discover and Visa.