What is Northern New Jersey Mensa?
Northern New Jersey Mensa is a local chapter of American Mensa, which is part of Mensa International, the world’s oldest and largest high-IQ society. Membership is open to anyone who has scored in the top 2% of any standardized IQ test. Our local chapter has more than 500 members. We are an ethnically and culturally diverse group, with members of all ages.

Our chapter’s home turf consists of the ZIP codes starting with 071, 073, 074, 075, 076, 078, part of 079, and most of 070. This is roughly the area of the state north of Interstate Route 78, minus Sussex and part of Warren counties. However, any member of American Mensa can choose to be assigned to our chapter.
Our Diamond Awards
We are the top-performing chapter in American Mensa, having won four consecutive Diamond Awards. Mensa’s Jewel Awards are given to recognize excellent performance by a chapter. This article from the Mensa Bulletin explains the Jewel Award program.
Our History
Mensa was founded in Oxford, England, in 1946 by Roland Berrill and Lancelot Lionel Ware. Our local chapter was founded in 1969 by Sid Riskin and Marvin Lippincott.
Why should I Join NNJM?
HIgh-IQ people have intellectual, social, and emotional needs that often go unmet. This is particularly true of high-IQ children.
- Find people who share your interests and get your jokes!
- Help your high-IQ child find peers who can become true friends.
- Meet brilliant people from all over the country, even all over the world!
- Get discounts from many vendors
How Can I Join NNJM?
First you have to be a member of American Mensa. Learn more on our How to Join page. Once you have joined Mensa, just tell them that you want to be part of Northern New Jersey Mensa. If you’re in our area, that will be the default anyway, but it never hurts to be sure.
Click here to learn more.
