Manteca Unified School District’s competition was fairly small just a few years ago.Primarily Christian schools such as St. Anthony’s, Plumfield Academy, Ripon Christian Schools, and Manteca Christian Schools competed with the district for students. And given parents had to come up with the tuition, the numbers of students who opted out of public school was small.Now the school landscape has changed. The Christian schools have been joined by public charter schools in and around Manteca - Great Valley Academy, Ripon Unified Virtual Academy and a variety of charter schools through the San Joaquin County Office of Education.