You would be wrong about that. Los Alamos, NM, reports that 18.7% of residents over age 25 have PhDs. That’s a higher percentage than Palo Alto or Chapel Hill.
And Los Alamos doesn’t have any universities that would influence the number of PhDs. It does have a National Laboratory. Los Alamos is a “company town”-- everyone works at the LANL or works in a business that supports LANL or the employees of LANL.