Membership in Mensa is open to anyone who has achieved a score within the top 2 percent of the general population on an approved intelligence test. More than five million Americans are eligible for membership.

Mensa has members as young as three and as old as 102. However, the Mensa Admissions Test which we administer is only valid for children 14 years and older. Testing for children under 14 is available through private testing services (check the Yellow Pages) and educational institutions.

Mensa offers two test batteries. The Standard Test battery consists of two timed IQ tests, one short, the other longer, based on proprietary versions of the Wonderlic and Reynolds Adaptable Intelligence Test (RAIT). The Culture Fair Test battery consists of three tests (two untimed) which are designed for people who are not proficient in English or otherwise require untimed testing. Each test battery takes about two hours to complete, including registration time, costs $60, and can only be taken once. You must be over 14 to take either test and persons between the age of 14 and 18 must have a signed permission of their parent or guardian.

San Francisco Regional Mensa offers supervised tests frequently. Advanced registration is preferred. Most tests are given on Saturdays and take 2 hours to complete. Please bring a photo ID with you, as well as a check for $60 payable to American Mensa Ltd.

To take one of these tests, send email to our Testing Coordinator and provide your name, address, phone number, and the test location and date(s) in which you are interested.

Your GRE, GMAT, SAT, ACT, LSAT, Military test, and many others, may qualify you for membership, regardless of how long ago they were administered.

The National Mensa website lists qualifying scores and provides an online form to submit these scores. The fee for verifying prior evidence is $60.

If you would like to renew your current membership, or are a previous member of Mensa and want to re-instate your membership, you can do so in one of three ways:

  • by renewing online on the National Mensa website
  • by calling the National office at (817) 607-0060 and charging the membership fee to a credit card
  • by sending your name, Mensa membership number and a check for $78 to the National Mensa office at the address listed below

If you do not have your membership number you will still need to contact the national office. Only the national office keeps records of previous members’ membership numbers.


Expect a confirmation email to insure your spot, as space is limited.


UU Church of Palo Alto
505 East Charleston Road
Palo Alto, CA 94306



The online Mensa Practice Test is a fun way to discover if you are Mensa material.

While this 30-minute test will not qualify you for membership, it does offer an equivalent score that correlates to your IQ range and provides a strong indication of your likelihood for success should you choose to take our admission test.


For More Information

See “Join Mensa” on the American Mensa website.

Questions About Membership?

Email SFRM’s Membership Chair

Questions About Testing?

Email SFRM’s Testing Coordinator