US Post Office is located at 80 N Market St, Logan, OH. This business specializes in Post Offices. 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, 9:05am-12pm; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.