Mensa is an intelligent persons organization joined by Lisa. The other members of the Springfield group include Dr. Hibbert, Professor Frink, Comic Book Guy, Principal Skinner, and Lindsey Naegle. They gain control of Springfield, but after their experiment fails, they are shown up by Stephen Hawking, whom Homer refers to as Lisa's "robot buddy." Members must score at the 98th percentile or higher of a standardized, supervised intelligence test. Mensa is formally composed of national groups and the umbrella organization Mensa International.
The Idiots RevolutionWhen Mensa International discussed the problems about the lesser intelligent (seemingly "stupid") Springfieldians, they ran to the Mayor's Office with evidence to prove their case. Mayor Quimby, however, believed they had uncovered his corrupt activities thus had all compromising evidence destroyed, and fled town via air and robbing Chief Wiggum of the chance to arrest him. By law, Mensa Springfield - as the most learned citizens - were now in charge of Springfield, and intended to reform the town into a utopia.
However, some of their reforms threatened to cause a riot, until Stephen Hawking showed up. Professor Hawking then used his built-in boxing glove to take on Seymour Skinner. As the Springfield idiots attacked Gazebo 7, the professor flew out just in time using his built-in hover-device. Mayor Quimby then returned to Springfield to retake full power.
- Julius Hibbert IQ:155
- John Frink IQ:197
- Lindsey Naegle IQ:131+
- Seymour Skinner IQ:131+
- Lisa Simpson IQ:159 (formerly 156)
- Jeff Albertson IQ:170
- Melvin Van Horne (Tapped out only) IQ:131+
- Martin Prince (Tapped out only) IQ:216
- Ned Flanders IQ:156+
- Moe Szyslak IQ:154+
- Mensa (pronounced /ˈmɛnsə/; IPA: [ˈmensa] in Latin) means "table" in Latin as is symbolized in the organization's logo.