I believe Gustavus Adolphus (MN) has a chapter of Tri Sigma, which is the only NPC on that campus.

I think Alpha Sigma Tau also has a chapter there.

Gallaudet University has SEVERL Local Fraternities and Sororities: Kappa Gamma, Alpha Sigma Pi (Both Fraternities). Phi Kappa Zeta, Delta Epsilon (Both Sororities)
We also have National Organizations on campus: Kappa Sigma and Delta Sigma Phi (fraternities) and Delta Zeta and Alpha Sigma Theta (sororities)

If I'm not mistaken, Kenyon College has all local sororities. The fraternities are both local and national.

I believe Loyola New Orleans used to be all locals but is now about half and half.