US Post Office is located at 300 W Pershing Rd, Kansas City, MO. This location is in the Crown Center neighborhood. This business specializes in Post Offices. US Post Office is open Mon, 8:05am-6pm; Tue, 8:05am-6pm; Wed, 8:05am-6pm; Thu, 8:05am-6pm; Fri, 8:05am-6pm; Sat, 8:05am-5pm; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.