Answers.Body: <h2>Hamburger SK von 1830 eV (419 members)</h2>
  
  <p>Located in Hamburg, second largest city of Germany with a population of approx. 1.8 Mio people. The number includes younger players, partly without national rating number. In Germany there are about 60 clubs with more than 100 members. Interestingly, to my information no club in Berlin (which is 2 times bigger than Hamburg) comes anywhere near the member count of the Hamburger SK. On the other hand there are 17 clubs in Berlin to choose from.</p>
  
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Answers.CreationDate: 2012-05-19T07:46:12.067Z
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Answers.UserDisplayName: Ray
Answers.Body: <h2>Mechanics' Institute (250 members)</h2>
  
  <p>(<a href="http://www.chessclub.org/" rel="nofollow">The Mechanics' Institute Chess Club in San Francisco</a>)</p>
  
  <p>This just based on the size of <a href="http://www.milibrary.org/contact" rel="nofollow">their staff</a>, their membership fees are relatively low, hours of operation, and that it is the oldest chess club in the United States; <a href="http://www.sgzurich2009.ch/" rel="nofollow">Zurich has the oldest club</a>.</p>
  
  <p>That said, I was unable to find any chess club that post yearly counts for membership purchased and/or given; that said, games played onsite, and the average rating of those games would likely be a more useful numbers.</p>
  
  <p><strong>UPDATE:</strong> So, according to <a href="http://en.wikipedia.org/wiki/William_John_Donaldson" rel="nofollow">John Donaldson</a>, Chess Director of the Mechanics' Institute Chess Club, he guessed 250 players use the club a month; reason for a guess is that it's complicated to know the exact count, since the membership is to the Institute, not just the chess club. Also, he said that the Tuesday Marathon attracts roughly 100 players. </p>
  
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Answers.CreationDate: 2012-05-18T16:25:41.677Z
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Answers.LastEditDate: 2012-05-18T18:34:17.727Z
Answers.UserDisplayName: blunders
Answers.Body: <h2>Marshall Chess Club (500 members)</h2>
  
  <p>(<a href="http://www.marshallchessclub.org/" rel="nofollow">Marshall Chess Club, New York, NY</a>)</p>
  
  <p>Roughly 500 "active" members; meaning the player's membership is currently paid in full. It's free to visit one-time, and there's blitz games on Friday for players of any rating for $20.</p>
  
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Answers.LastActivityDate: 2012-05-18T21:21:15.003Z
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Answers.UserDisplayName: blunders
Answers.Body: <h1>Marseille Échecs (831 members)</h1>
  
  <p>According to the French Chess Federation, <a href="http://www.echecs.asso.fr/FicheClub.aspx?Ref=1648" rel="noreferrer">Marseille Échecs</a> is the largest French club, totaling 831 officially registered players.</p>
  
  <p>Two other French clubs have more than 500 members, in the cities of <a href="http://www.echecs.asso.fr/FicheClub.aspx?Ref=689" rel="noreferrer">Bois-Colombes</a> (612) and <a href="http://www.echecs.asso.fr/FicheClub.aspx?Ref=978" rel="noreferrer">Villepinte</a> (584), both near Paris.</p>
  
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Answers.CreationDate: 2012-05-21T00:31:04.927Z
Answers.Text: +1 @Sam Hocevar: So, are there fees for the club? Do memberships expire? Ask because I was unable to find this information. Thanks!
Answers.UserDisplayName: blunders
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Answers.Text: @blunders: the members listed are only the members who paid for a type A or type B official licence (allowing to play respectively in all French tournaments and in <= 60 minute tournaments). The Federation fee varies with the region and the age (the [figures](http://www.echecs.asso.fr/Tarifs.aspx) indicate an adult type A licence is 42€ and a type B is 7€ for region Côte d'Azur). That's mainly to cover insurance and as far as I know they expire after 1 year. There is usually also a club-specific yearly fee but I don't know how much that is for Marseille Échecs.
Answers.UserDisplayName: sam hocevar
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Answers.Text: +1 @Sam Hocevar: Thanks for the additional info. While it's not my question, I'd say that "club-specific fee" is the key to understanding the membership count for a club, since those numbers if audited would be harder to fake. If a club allows anyone with their Federation fees paid to join, people might join to get a newsletter, or something. Please don't take this as criticism of your answer, but to how hard it is to answer the question itself as stated.
Answers.UserDisplayName: blunders
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Answers.CreationDate: 2012-05-21T12:44:20.543Z
Answers.Text: @blunders: I understand. In the meantime I found out that the club-specific fee was [about 60 € in 2010](http://marsechecs.blogspot.fr/2010_09_05_archive.html), in addition to the licence. I have no idea whether or how many people pay only for the licence.
Answers.UserDisplayName: sam hocevar
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Answers.Text: Well, I know that for the two clubs I listed the way I got the numbers for the club was by calling, saying I was doing research for the largest chess club in the world. Both times the person answering was super friendly, and understood what I meant by "active memberships". Is an interesting question though. Cheers!
Answers.UserDisplayName: blunders
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Answers.UserDisplayName: sam hocevar
Body: <p>Most chess clubs in my area struggle to gather more than 30 federated members with only one club past the 100-member count in a territory of 8 million people.</p>
  
  <p>Which is the largest physical chess club in the World and how many members does it have?</p>
  
Tags: <clubs>
Title: Which is the World's largest chess club?
ThreadText: # Which is the World's largest chess club?
  
  (Asked by: username_0 on 2012-05-17)
  
  Most chess clubs in my area struggle to gather more than 30 federated members with only one club past the 100-member count in a territory of 8 million people.
  
  Which is the largest physical chess club in the World and how many members does it have?
  
  **Tags:** clubs
  
  
  ---
  
  ## 4 answers
  
  ### Answer by username_3 on 2012-05-20. Score: 5 | Accepted answer
  
  # Marseille Échecs (831 members)
  
  According to the French Chess Federation, [Marseille Échecs](http://www.echecs.asso.fr/FicheClub.aspx?Ref=1648) is the largest French club, totaling 831 officially registered players.
  
  Two other French clubs have more than 500 members, in the cities of [Bois-Colombes](http://www.echecs.asso.fr/FicheClub.aspx?Ref=689) (612) and [Villepinte](http://www.echecs.asso.fr/FicheClub.aspx?Ref=978) (584), both near Paris.
  
  > **Comments:**
  > **username_2**: +1 @Sam Hocevar: So, are there fees for the club? Do memberships expire? Ask because I was unable to find this information. Thanks!  
  > **username_3**: @username_2: the members listed are only the members who paid for a type A or type B official licence (allowing to play respectively in all French tournaments and in <= 60 minute tournaments). The Federation fee varies with the region and the age (the [figures](http://www.echecs.asso.fr/Tarifs.aspx) indicate an adult type A licence is 42€ and a type B is 7€ for region Côte d'Azur). That's mainly to cover insurance and as far as I know they expire after 1 year. There is usually also a club-specific yearly fee but I don't know how much that is for Marseille Échecs.  
  > **username_2**: +1 @Sam Hocevar: Thanks for the additional info. While it's not my question, I'd say that "club-specific fee" is the key to understanding the membership count for a club, since those numbers if audited would be harder to fake. If a club allows anyone with their Federation fees paid to join, people might join to get a newsletter, or something. Please don't take this as criticism of your answer, but to how hard it is to answer the question itself as stated.  
  > **username_3**: @username_2: I understand. In the meantime I found out that the club-specific fee was [about 60 € in 2010](http://marsechecs.blogspot.fr/2010_09_05_archive.html), in addition to the licence. I have no idea whether or how many people pay only for the licence.  
  > **username_2**: Well, I know that for the two clubs I listed the way I got the numbers for the club was by calling, saying I was doing research for the largest chess club in the world. Both times the person answering was super friendly, and understood what I meant by "active memberships". Is an interesting question though. Cheers!  
  
  ---
  
  ### Answer by username_1 on 2012-05-19. Score: 4
  
  ## Hamburger SK von 1830 eV (419 members)
  
  Located in Hamburg, second largest city of Germany with a population of approx. 1.8 Mio people. The number includes younger players, partly without national rating number. In Germany there are about 60 clubs with more than 100 members. Interestingly, to my information no club in Berlin (which is 2 times bigger than Hamburg) comes anywhere near the member count of the Hamburger SK. On the other hand there are 17 clubs in Berlin to choose from.
  
  
  ---
  
  ### Answer by username_2 on 2012-05-18. Score: 3
  
  ## Mechanics' Institute (250 members)
  
  ([The Mechanics' Institute Chess Club in San Francisco](http://www.chessclub.org/))
  
  This just based on the size of [their staff](http://www.milibrary.org/contact), their membership fees are relatively low, hours of operation, and that it is the oldest chess club in the United States; [Zurich has the oldest club](http://www.sgzurich2009.ch/).
  
  That said, I was unable to find any chess club that post yearly counts for membership purchased and/or given; that said, games played onsite, and the average rating of those games would likely be a more useful numbers.
  
  **UPDATE:** So, according to [John Donaldson](http://en.wikipedia.org/wiki/William_John_Donaldson), Chess Director of the Mechanics' Institute Chess Club, he guessed 250 players use the club a month; reason for a guess is that it's complicated to know the exact count, since the membership is to the Institute, not just the chess club. Also, he said that the Tuesday Marathon attracts roughly 100 players.
  
  
  ---
  
  ### Answer by username_2 on 2012-05-18. Score: 3
  
  ## Marshall Chess Club (500 members)
  
  ([Marshall Chess Club, New York, NY](http://www.marshallchessclub.org/))
  
  Roughly 500 "active" members; meaning the player's membership is currently paid in full. It's free to visit one-time, and there's blitz games on Friday for players of any rating for $20.
  
  
  ---
  
  