Of the 9 Justices, 3 graduated from Yale Law School (Thomas, Alito and Sotomayor) and 5 from Harvard Law School (Roberts, Scalia, Kennedy, Breyer and Kagan); Ginsburg graduated from Columbia Law School, but she started out at Harvard Law School and made Law Review, and only transferred to Columbia because her husband got a job in New York, so she’s pretty much a 6th Harvard there.
Still, it's really unfathomable that all of them come from 2+ Ivy League law schools. What elitism!!!
There was a time in American history when it was considered politically wise for a president to go for, among other factors, geographic balance with appointments to the SCOTUS. Apparently those days are long gone.