Membership in Mensa is open to anyone who has scored within the top 2% of the general population on a supervised intelligence test (recognized as such by the International Psychological Association or a national psychological association).  There are approximately 200 tests accepted for membership.  For information about some other tests and scores that American Mensa accepts, please see the Qualifying Test Scores link on the Join Mensa Page on the American Mensa, Ltd. website. www.us.mensa.org

If you do not have prior evidence of eligibility, you may qualify by taking two tests at a Mensa-sanctioned supervised testing session.  (Note: You must be age 14 or over to attend a session.)  The Mensa testing session, which consists of two tests with a short break in between, usually lasts under one hour and forty-five minutes.  If you are dyslexic, if your primary [first] language is not English, or if you have a physical condition that prevents you from taking a timed test, you may be eligible to take the Mensa non-language battery of tests.  A session for these tests may be scheduled by request.  The cost of a Mensa testing session is $40.

For more information about Boston Mensa testing sessions, please see the Boston Mensa testing sessions page.

If you would like to take a practice test before attempting the supervised tests, please visit our online IQ test page.

For all other membership questions, such as how to renew, rejoin, or change your address, please contact American Mensa, Ltd. at 1229 Corporate Drive West, Arlington, TX, 76006-6103.  You may also call (817) 607-0060 or (800) 66-MENSA (message and information line only), send a fax to (817) 649-5232, send an email to American Mensa, Ltd., or visit the American Mensa, Ltd., webpage.  The final authority on admission matters rests with the American Mensa, Ltd., national office, under the aegis of the American Mensa supervisory psychologist. The material presented on this page is for informational purposes only, is non-binding, and is subject to change without notice.

For new members of Boston Mensa only:  If you live within Massachusetts zip codes 01421 through 02675, you will be automatically assigned to the Boston chapter of Mensa.  About six to eight weeks after you join American Mensa you should start receiving our local newsletter, The Beacon.  This has the information you will need to attend local events.  If you can't wait that long, email Boston Mensa directly and include your name, address, and your membership number.