National Center for Educational Statistics (NCES) School ID Codes. These codes are required on GED application documents. To search for a high school’s NCES School ID, access the NCES home page at http://nces.ed.gov/ When the site is accessed, click Search for Schools, Colleges, and Libraries. After selecting the state from the drop-down box enter the city and the name of the school. Check whether or not the school is public or private. Click Search. When the school’s name and address appear, click the name. School general information, data, and statistics will appear. Included in the information will be the school’s 12-digit NCES School ID.