US Post Office is located at 4050 Indian Head Hwy, Indian Head, MD. This business specializes in Post Offices. US Post Office is open Mon, 7am-5pm; Tue, 7am-5pm; Wed, 7am-5pm; Thu, 7am-5pm; Fri, 7am-5pm; Sat, 8am-2pm; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.