US Post Office is located at 619 12Th St, Golden, CO. This location is in the Golden Proper neighborhood. 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, 8am-1pm; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.