US Post Office is located at 741 E Highland Ave, Phoenix, AZ. 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, Closed; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.