US Post Office is located at 560 E Pleasant Valley Rd, Port Hueneme, CA. This location is in the Port Hueneme neighborhood. This business specializes in Post Offices. US Post Office is open Mon, 9am-5:05pm; Tue, 9am-5:05pm; Wed, 9am-5:05pm; Thu, 9am-5:05pm; Fri, 9am-5:05pm; Sat, 9am-2pm; Sun, Closed and accepts American Express, Discover, Mastercard and Visa.