Here are some map files that you can place inside your Map folder in JMP that will allow you to map North Carolina school districts.
Info on school districts can be found at http://www.ncpublicschools.org/docs/fbs/resources/leacharterlist.pdf
Some of the charter, military, and Native American based groups are not covered. Some counties have more than one school district so having an LEA specific map can sometimes be a great help. Be sure to check the names file to see the appropriate format.