US Post Office is located at 222 2Nd St, Smithton, PA. This business specializes in Post Offices and has 1 review(s) with a star rating of 1.0. US Post Office is open Mon, 8:05am-4:05pm; Tue, 8:05am-4:05pm; Wed, 8:05am-4:05pm; Thu, 8:05am-4:05pm; Fri, 8:05am-4:05pm; Sat, 8:05am-11:59am; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.