I am an alumna of Cal State Long Beach. The Greek system there is not well-liked by the administration of the school or by some of the school population but they do fairly well. NPC has not expanded since they restarted the Greek system in the 80's. There are 7 NPC sororities active on campus and 6
recognized IFC chapters with 3 colonies so they are definitely expanding.
NPC include Alpha Omicron Pi, Alpha Phi, Delta Delta Delta, Delta Gamma, Delta Zeta, Gamma Phi Beta, and Sigma Kappa

.
IFC include Delta Chi, Kappa Sigma, Phi Kappa Tau, Sigma Alpha Epsilon, Sigma Pi, and Theta Chi. The IFC colonies are Pi Kappa Phi, Pi Kappa Alpha, and Zeta Beta Tau.
All of the Divine 9 are represented at CSULB as well.

There are also 12 cultural GLO's on campus as well.
Now I serve as an advisor to my GLO at UC Riverside where Greek Life is doing ok but I think there are many things that can be done to make it flourish. Unfortunately, the administration is slow to act on Greek Affairs.
UCR has 10 IFC's, 6 NPC's, 7 NPHC's, and many cultural and professional GLO's.