In this work Ilvermorny is only the school for the North East of the U.S. I have included a diagram on my tumblr (iliketothinkicanwrite) that demonstrates this. The Central Southern states are home to Rycheed Academy of Magicks in Arkansas and the North Western states house Crocksman School for Young Magical Persons in Washington. There is also Salem Institute for Young Ladies in Massachusetts, Rambourne School of Witchcraft and Wizardry in Alaska and Plumeri State Kula for Magic in Hawaii/

Similar to State and Federal Law all three "Superstates" of Magical Activity are governed by the MACUSA. However each Superstate governs the wizarding community in each of their provinces. For example the laws on No-Maj-Wizard marriage are more liberal in the two Northern Superstates but stricter in the Southern Superstate. The Superstates are: NEMACUSA (North Eastern Magical Assembly of the Congress of the United States of America), NWEMACUSA (North Western Magical Assembly of the Congress of the United States of America) and SOMACUSA (Southern Magical Assembly of the Congress of the United States.)

Students start wizarding schools in the U.S at ten until they are eighteen. At eighteen they take final exams before doing two years at a college or an apprenticeship.

The events of the Harry Potter series have taken place in this universe.

I advise that you read J.K Rowling's "History of Magic in North America" and "Ilvermorny School of Witchcraft and Wizardry" on Pottermore before proceeding.

If you have any questions send me a PM or an ask/message on my Tumblr: iwritebutidontyoufeel