Yes believe it or not, about 1.8 Million people actually live out here
It's interesting how your parents do not wish to wait a couple of years before moving. Instead they want to ship you off to a new place for your last two years of high school. On the one hand you lose relationships you have built with classmates over the years but on the other hand, by moving, you get a chance for a fresh start. Tough call.
Anyways, High Schools
in Las Vegas are generally hit or miss however Summerlin area schools (Palo Verde, Cimarron-Memorial, Shadow Ridge, Centennial) are definitely above average.
There are not very many schools around the Lake Las Vegas area. Basic High School would probably be the school you would end up attending however I am not too sure how the school ranks academically. If you and your parents are seeking an area with many schools, I suggest looking in a different part of Las Vegas that's a bit more developed.
You might also have your parents explore a few private school
options if the public school offerings don't meet your expectations.
I am a recent graduate of Coronado High School
out in Henderson. Fantastic public high school that's run like a private high school. Coronado is located in the Anthem/Seven Hills community. Have you and your parents checked out that area yet? I highly recommend it.