This guy on the Greek Life Forum provided fairly current statistics (May 17th, 2004) on the National Fraternities listed on a website with their respective executives...
It is also provided by the following website by Ariesrising (reportedly updated to July 2004 - NOW):
http://www3.telus.net/ariesrising/numbers.html
The poster on the Greek Life forum broke it down...
I know one thing - we knew we were the largest fraternity in the world CHAPTER wise...
Now it looks to be in all aspects...
I know the SAE's on our campus talked about their initiates number, and we talk about our chapters...
Well looks like we have both now
Here's the post from the guy on the greek life forum:
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Here are two separate lists. The first list is of fraternities with more than 100 chapters. (I did not include colonies or affiliates) The second list is fraternities with more than 100,000 total initiates.
Please do not shoot the massager here. I got the following statistics from the Fraternities Executives Association's web site. Last updated on Monday, May 17, 2004.
http://www.fea-inc.org/fratern.htm
My understanding is that each fraternity's information is provided by the fraternity. So how up to date the statistics may be is depended on each fraternity.
FYI: From the information provided, you can not divide the total number of initiates by number of chapters to get an average chapter size. The number you would get would be the total number of initiates per chapter. To get the historical average chapter size you would then need to divide that number by the total cumulative number of years for all active chapters.
To find the current average chapter size, you would need to know the number of current active members divided by the current number of chapters. The web site does not provide this information.
For example. Fraternity ABC is listed with two chapters and 120 initiates. Chapter A has had 60 members for 3 years while Chapter B has had 60 members for 2 years. If you were to divide 120 by 2 you would come up with 60. But the accurate chapter average would be 24. How would you get there is to divide 120 (total initiates) by 5 (each active year of each chapter - 3 for Chapter A and 2 for Chapter B.) Thus 120/5 = 24.
Perhaps you can you tell I'm a statistics nerd.
Fraternities with 100 plus chapters
243 Tau Kappa Epsilon
238 Sigma Phi Epsilon
218 Sigma Chi
208 Pi Kappa Alpha
207 Sigma Alpha Epsilon
194 Kappa Sigma
190 Lambda Chi Alpha
185 Sigma Nu
167 Phi Delta Theta
140 Alpha Tau Omega
134 Theta Chi
130 Kappa Alpha Order
129 Beta Theta Pi
119 Pi Kappa Phi
117 Delta Chi
113 Phi Gamma Delta
112 Delta Tau Delta
107 Sigma Pi
102 Delta Sigma Phi
Fraternities with 100,000 plus initiates
280,544 Tau Kappa Epsilon
270,867 Sigma Alpha Epsilon
263,975 Sigma Chi
245,904 Sigma Phi Epsilon
240,379 Lambda Chi Alpha
219,000 Kappa Sigma
217,400 Phi Delta Theta
215,000 Pi Kappa Alpha
206,653 Sigma Nu
185,000 Alpha Tau Omega
182,284 Kappa Alpha Order
168,000 Beta Theta Pi
153,145 Theta Chi
148,100 Phi Gamma Delta
144,167 Delta Tau Delta
117,199 Delta Upsilon
115,000 Phi Sigma Kappa
110,000 Zeta Beta Tau
107,000 Delta Sigma Phi
104,000 Phi Kappa Psi
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GO T K E !!!