Mensa Testing in Las Vegas
Mensa is the world's oldest and largest high-IQ society, welcoming individuals who score in the top 2% of the population on a standardized intelligence test. This comprehensive guide covers the history of Mensa, membership requirements, Las Vegas's connection to Mensa, and everything you need to know about testing in Las Vegas.
Last Updated: July 2026
Mensa History
From its founding in 1946 to today – the story of the world's premier high-IQ society.
Qualifying Scores
Complete guide to accepted tests and score requirements for Mensa membership.
Mensa in Las Vegas
How many Mensa members are in Las Vegas and what the community looks like.
Accepted Tests
Full list of standardized tests accepted by Mensa for membership qualification.
Testing Process
What to expect during the Mensa Admission Test and how to prepare.
Schedule Mensa Testing
Book your Mensa admission test or IQ assessment with a licensed psychologist in Las Vegas today.
The History of Mensa
The Founding: Oxford, England (1946)
Mensa was founded in 1946 at Oxford University in England by two remarkable individuals: Roland Berrill, an Australian barrister, and Dr. Lancelot Ware, a British scientist and lawyer. The two met by chance on a train journey and discovered they shared a common interest in intelligence testing. They decided to form a society for people with high IQs, and the result was Mensa.
The name "Mensa" comes from the Latin word for "table," symbolizing the organization's goal of creating a round-table society where members meet as equals regardless of background, occupation, race, or any other characteristic. The only qualification for membership is intelligence.
The Early Years
Mensa grew slowly at first but steadily gained recognition. By the 1960s, the organization had established chapters in several countries, including the United States. Today, Mensa has grown to over 150,000 members across more than 100 countries, making it the largest and oldest high-IQ society in the world.
American Mensa, the U.S. chapter, now boasts over 50,000 members, representing one of the largest national groups within Mensa International.
Mensa's Three Purposes
Mensa has three stated purposes:
- To identify and foster human intelligence for the benefit of humanity
- To encourage research into intelligence and its characteristics
- To provide a stimulating intellectual and social environment for its members
Las Vegas's Connection to Mensa
Southern Nevada Mensa is the American Mensa local group serving Las Vegas and the southern half of Nevada, plus Bullhead City, Arizona. The group was founded in 1965 and belongs to Region 9, the Far West Region. Local events and testing schedules change, so applicants should verify current information directly with American Mensa or the local group.
Mensa Qualifying Scores
To qualify for Mensa, you must score at or above the 98th percentile on an approved standardized intelligence test. This means performing better than 98 out of every 100 people who take the same test.
Qualifying Scores by Test
Note that different tests use different standard deviations, which is why the qualifying scores vary. The consistent requirement is the 98th percentile.
Mensa in Las Vegas
Southern Nevada Mensa and Local Membership
- Local group: Southern Nevada Mensa, group 890.
- Region: Region 9, the Far West Region.
- Coverage: Southern Nevada and Bullhead City, Arizona.
- History: Founded in 1965 with four members.
- Current directory count: American Mensa listed 345 members in 2026; membership changes and includes people outside Las Vegas city limits.
- Newsletter: The directory identifies the local newsletter as Mind Bets.
- Testing and youth contacts: The official directory identifies local testing and gifted-youth roles, but individual officers can change; use the current chapter profile rather than an archived contact list.
Who Takes a Mensa-Qualifying Test in Las Vegas?
- Adults seeking intellectual community: Social events, discussion, games, volunteering or personal challenge.
- Parents of advanced learners: Youth admission and accepted evidence differ from adult procedures.
- Students and professionals: Some submit prior scores obtained during clinical, school or accommodation evaluations.
- Important distinction: A Mensa admission test is for membership qualification and is not a diagnostic, disability or school-placement evaluation.
Las Vegas-Area Mensa Events
Southern Nevada Mensa may offer discussion groups, games, dining, gifted-youth activities and regional events. Venues and schedules change. Consult the official local-group and American Mensa calendars rather than relying on an old event listing.
People submitting prior evidence should retain the complete signed psychologist report and verify that it contains the exact test edition, qualifying score, administration date and examiner credentials required by current American Mensa rules.
Accepted Tests for Mensa Qualification
American Mensa accepts scores from approximately 200 different standardized intelligence tests. Tests must be administered by a neutral and qualified third party in a traditional testing environment.
Tests Commonly Administered by Psychologists
- Wechsler Adult Intelligence Scale (WAIS) – FSIQ 130
- Wechsler Intelligence Scale for Children (WISC) – FSIQ 130
- Stanford-Binet Intelligence Scales – IQ 130-132 (depending on version)
- Reynolds Intellectual Assessment Scales – IQ 130
- Differential Ability Scales (DAS) – GCA 130-132
Tests Administered by Schools
- Cognitive Abilities Test (CogAT) – Composite SAS 132
- Otis-Lennon School Ability Test (OLSAT) – Total SAI 132
- Naglieri Nonverbal Ability Test (NNAT) – Nonverbal Ability Index Score 130-132
- Woodcock-Johnson Test of Cognitive Abilities – IQ 131-132
College Preparatory Tests
- SAT (pre-1994) – Combined Verbal & Math 1250+
- GRE (pre-2001) – Combined Verbal & Quantitative 1250+
- ACT (pre-September 1989) – Composite 29+
The Mensa Testing Process
Two Ways to Qualify
Applicants may qualify through the Mensa Admission Test or by submitting acceptable prior evidence from an approved standardized test. Accepted tests, dates, score rules, and documentation requirements can change.
The Mensa Admission Test
American Mensa admission-test availability, pricing, age rules and promotions can change. Check the official admissions-testing system and Southern Nevada Mensa’s current announcements before making travel plans or assuming a particular fee or date.
What the Mensa Admission Test Measures
The admission battery is designed to determine whether the applicant meets Mensa's percentile requirement. It is not a clinical diagnostic evaluation and generally does not provide a detailed cognitive profile for treatment, disability, school, or employment purposes.
Important: The Test is for Admission Only
Use a licensed psychologist when you need a formal IQ score, diagnostic interpretation, accommodation documentation, or a comprehensive report. Before paying for private testing, confirm that American Mensa currently accepts the selected instrument and report format.
Frequently Asked Questions
Mensa was founded in 1946 in Oxford, England by Roland Berrill and Dr. Lancelot Ware. The name comes from the Latin word for "table," symbolizing a round-table society where all members are equal. Today, Mensa has over 150,000 members in more than 100 countries. American Mensa has over 50,000 members.
The requirement is scoring at or above the 98th percentile on an approved intelligence test. This translates to:
- WAIS-IV or SB-5: IQ 130
- Stanford-Binet (older): IQ 132
- Cattell Culture Fair: IQ 148
- SAT (pre-1994): Combined 1250+
American Mensa’s 2026 chapter directory listed 345 members for Southern Nevada Mensa. That total changes over time and covers the local group’s full territory—not Las Vegas city alone—so it should not be interpreted as a city membership count.
The Mensa Admission Test takes 1-2 hours total, including check-in and instructions. The two test batteries are timed and typically run between 20-25 minutes each.
As of July 2026, American Mensa lists local-group admission testing at $60, private testing at $99, and annual dues at $107. Fees can change, so verify current pricing directly. Independent psychological testing is priced separately by the evaluator.
Yes. Mensa accepts qualifying scores from tests taken at any point in your life, including childhood. You need to obtain an official report from the testing service or school showing your score. Many members join using SAT scores from decades ago.
No. Mensa does not accept online tests for admission. The test must be administered in person by a qualified proctor in a supervised environment. This includes the Mensa Admission Test and any prior evidence you submit.
Yes. Children can qualify for Mensa by scoring at the 98th percentile on an age-normed test. Parents can submit a psychologist's report directly to American Mensa. There is also a gifted youth program for younger members.
The Mensa Admission Test is designed only to determine if you qualify for membership and does not provide a detailed score report. Professional IQ testing (WAIS-IV, SB-5) provides a comprehensive report with Full Scale IQ, index scores, strengths, and weaknesses. Professional testing is better if you need a detailed analysis for school, career, or clinical purposes.
Mensa is primarily a social organization that provides community for people with high IQs. Activities include social events, discussion groups, lectures, game nights, and special interest groups. Mensa also supports gifted education initiatives, scholarships, and research into intelligence.