Harbor City International School, also known as Harbor City or HCIS, is a secondary school in Duluth, Minnesota that opened in the fall of 2002. It serves students in grades nine through twelve. It currently has 208 students enrolled in the school and is accepting applicants. It is a college preparatory school that offers advanced placement classes while also emphasizing Service Learning, Environmental Awareness, Open Source Information Technology, Creative and Performing Arts and Community Connections.