Largest Greek system
 

University of Illinois claims to be the largest Greek system in the U.S. Here are some fall 2007 statistics recently released: 37 sororities and 61 fraternities with a total membership of approximately 6,700, which represents about 22.5% of the undergraduate population. 63 groups have houses occupied by approximately 2,300 students.

Panhellenic groups average 177 members with a 3.33 G.P.A.
All women student G.P.A. is 3.17
I.F.C. groups average 72 members with a 3.10 G.P.A.
All male student G.P.A. is 3.00
United Greek Council groups average 8 members with a 2.87 G.P.A.
Black Greek Council groups average 4 members with a 2.66 G.P.A.

The following are listed in the Panhellenic category, the first number is total members & the second is academic ranking within the category (an asterisk indicates they are unhoused).

Kappa Alpha Theta, 190 18
Delta Gamma, 186 11
Pi Beta Phi, 182 6
Delta Delta Delta, 181 14
Kappa Delta, 181 16
Alpha Chi Omega, 180 15
Kappa Kappa Gamma, 180 8
Gamma Phi Beta, 178 13
Alpha Phi, 177 3
Alpha Delta Pi, 176 5
Sigma Delta Tau, 176 2
Chi Omega, 176 9
Sigma Kappa, 168 12
Delta Zeta, 167 20
Alpha Omicron Pi, 164 10
Alpha Gamma Delta, 163 7
Alpha Epsilon Phi, 158 1
Phi Mu, 118 21
Alpha Omega Epsilon, 54 23 *
4-H House, 54 17
Sigma Alpha, 35 19 *
Phi Sigma Sigma, 32 22
Kappa Phi Lambda, 16 24 *
Delta Xi Phi, 8 4 *
Alpha Xi Delta is colinizing Fall 2009
Inactive NPCs: TPA, 1919-1950; ZTA, 1921-1994; DPE, 1927-1988;
SSS, 1957-1987 & ASA, 1982-1992

The following are listed under Interfraternity Council category:

Sigma Phi Epsilon, 171 4
Delta Tau Delta, 148 15
Pi Kappa Alpha, 145 7
Alpha TRau Omega, 135 13
Acacia, 129 24
Sigma CXhi, 125 17
Theta Xi, 125 22
Phi kappa Psi, 122 18
Alpha Epsilon Pi, 109 1
Sigma Alpha Mu, 103 2
Beta Theta Pi, 102 29
Lambda Chi Alpha, 99 21
Zeta Beta Tau, 98 8
Phi Delta Theta, 93 22
Alpha Gamma Rho, 88 23
Delta Upsilon, 87 10
Delta Chi, 85 34
Theta Chi, 80 26
Phi Sigma Kappa, 78 39
Tau Kappa Epsilon, 77 37
Alpha Sigma Phi, 72 11
Alpha Kappa Lambda, 67 36
Pi Kappa Phi, 61 14
Alpha Delta Phi, 47 40
FarmHouse, 54 5
Delta Sigma Phi, 51 9
Phi Gamma Delta, 50 12
Sigma Pi, 50 43
Chi Psi, 48 28
Kappa Sigma, 48 30
Triangle, 48 27
Kappa Delta Rho, 47 6
Alpha Gamma Sigma, 44 16
Omega Delta, 44 25
Pi Lambda Phi, 36 42
Psi Upsilon, 36 33
Sigma Nu, 28 44
Sigma Phi Delta, 28 35
Alpha Chi Rho, 26 31
Phi Kappa Sigma, 24 41
Zeta Psi, 24 38
Sigma Tau Gamma, 31 19
Delta Phi, 19 20
Beta Sigma Psi, 16 3
Omega Delta Phi, 11 45 *
Recently closed: SAE 200?, TDX 199?, PKTheta 199?, PKTau 199? &
TEP 2007

Listed under United Council Greeks:

F Alpha Psi Lambda, 24 13
S Delta Kappa Delta, 17 1
F Alpha Iota Omicron, 16 8
S Gamma Phi Omega, 12 9
F Lambda Phi Epsilon, 12 11
S alpha Kappa Delta Phi, 11 12
F Lambda Theta Phi, 8 5
F Lambda Upsiulon Lambda, 7 2
S Sigma Lambda Gamma, 7 7
S Lambda Theta Alpha, 6 3
F Sigma Lambda Beta, 6 4
S Omega Phi beta, 5 10
S Alpha Delta Rho, 4 6
S Gamma Alpha Omega, 3 13

Listed under the Black Greek Council:

F Phi Delta Psi, 13 5
F Iota Phi Theta, 9 6
S Zeta Phi Beta, 7 3
F Omega Psi Phi, 6 4
F Phi Beta Sigma, 4 1
F Alpha Phi Alpha, 3 2
F Kappa Alpha Psi, 2
F Phi Rho Eta, 1
S Sigma Gamma Rho, 1
Inactive: Alpha Kappa Alpha, 1914-????; Delta Sigma Theta, 1932-????

Only 22.5% of the student population is Greek? I've always heard it was larger than that, more in the neighborhood of 40%. Have things changed at the UofI?

Texas A&M Univeristy - 56 Groups, 3,400 students (12% student body).

12 - NPC
22 - NIC
16 - MGC/NALFO
5 - NPHC

Wasn't Penn State the largest system at one point? I just checked the website and saw that they have 80+ GLOs now, but I'm almost positive I remember them having the most.