Some St. Johns County parents unhappy with zoning changes, but say it’s necessary Updated: Tags: ST. JOHNS COUNTY, Fla. – School boundaries are changing once again in northern St. Johns County. The school board signed off on the changes Tuesday to help ease some of the overcrowding at Bartram Trail and Nease high schools. A new high school, High School III, is expected to serve more than 1,300 students in the first year and that’s without a senior class for that first year. It will be made up of students previously zoned for Bartram Trail and Nease. And St. Johns County’s population continues to boom.