In what state do you have the most chapters?
 

I thought it would be interesting to see in which states each sorority has the most active chapters. The list is below. Some of the same states are near the top of several groups' lists because they have so many colleges, but some of the others may surprise you. The number after each sorority is the total number of states (plus D.C. & Canada) in which they have chapters. Please note, I could only do the NPC groups as I do not have accurate data on active NPHC chapters.

Alpha Chi Omega 40 California, Texas & Pennsylvania
Alpha Delta Pi 37 Texas, California, North Carolina & Tennessee
Alpha Epsilon Phi 22 New York & Massachusetts
Alpha Gamma Delta 36 Pennsylvania, Alabama & Michigan
Alpha Omicron Pi 34 Alabama, California, Indiana, Kentucky & Tennessee
Alpha Phi 37 California, New York, Ohio & Pennsylvania
Alpha Sigma Alpha 25 Pennsylvania, Missouri & Virginia
Alpha Sigma Tau 23 Pennsylvania, Michigan & New York
Alpha Xi Delta 37 Ohio, Michigan, New York, Pennsylvania & Wisconsin
Chi Omega 41 Texas, Ohio & North Carolina
Delta Delta Delta 39 California, Texas & Illinois
Delta Gamma 44 California, Ohio, Pennsylvania & Texas
Delta Phi Epsilon 16 New York, New Jersey & Pennsylvania
Delta Zeta 40 Pennsylvania, Ohio & Texas
Gamma Phi Beta 33 California, Texas & Pennsylvania
Kappa Alpah Theta 39 California, Ohio & Pennsylvania
Kappa Delta 35 Tennessee, Kentucky & Ohio
Kappa Kappa Gamma 43 California, Pennsylvania & Ohio
Phi Mu 28 Georgia, Alabama, North Carolina & Louisiana
Phi Sigma Sigma 23 New York, Pennsylvania & Michigan
Pi Beta Phi 44 California, Illinois, Indiana, Ohio, Pennsylvania & Texas
Sigma Delta Tau 21 New York, Florida, Pennsylvania & New Jersey
Sigma Kappa 36 California, Pennsylvania & Illinois
Sigma Sigma Sigma 27 Pennsylvania, Missouri & North Carolina
Theta Phi Alpha 15 Ohio, New Jersey, New York & Pennsylvania
Zeta Tau Alpha 31 Texas, Pennsylvania, Georgia & North Carolina

In an accompanying thread I am going to list the sororities with the most chapters in each state.

Awesome, thanks!!! Can we sticky these?

Wow, we're only in 31 states?? We gotta branch out!!

I know that with respect to the Commonwealth of Kentucky, Alpha Omicron Pi and Kappa Delta have more chapters than the other NPCs. As such, are the states listed after the number (total number of states) represent the states with the most chapters for that organization?