US Post Office is located at 100 Main St, Gause, TX. This business specializes in Post Offices. US Post Office is open Mon, 9am-5pm; Tue, 9am-5pm; Wed, 9am-5pm; Thu, 9am-5pm; Fri, 9am-5pm; Sat, 11am-3pm; Sun, Closed and accepts American Express, Discover and Visa.