The Newport-Mesa Unified School District is located in the second largest county in California, in terms of population. The D ... istrict covers 58.83 square miles and includes the cities of Newport Beach and Costa Mesa as well as other unincorporated areas. The District began operations on July 1, 1966 serving Kindergarten through twelfth grades (K-12). Currently, there are twenty-two elementary schools, two intermediate schools, four high schools, one alternative education center, an Early College High School and one adult education center in the District for a total of 31 schools. The District currently serves over 21,500 students. read more