Average IQ in Connecticut
Average IQ
103.1
US Ranking
#4
of 50 states
Region
Northeast
Note: State-level IQ estimates are derived from standardized test scores (NAEP, SAT, ACT) and demographic data. They reflect population-level trends influenced by education funding, socioeconomic factors, and demographics — not the intelligence of any individual resident.
About Connecticut's IQ Ranking
Connecticut ranks #4, reflecting its position as one of the wealthiest states with excellent suburban school districts and proximity to New York and Boston's knowledge economies. However, Connecticut also has one of the widest achievement gaps between wealthy and low-income districts in the country, with cities like Hartford and Bridgeport performing far below affluent suburbs like Greenwich and Westport.
For global context, see how the US compares in our United States IQ page and the full country rankings.
Connecticut vs Other Northeast States
| State | Average IQ | US Rank |
|---|---|---|
| Connecticut | 103.1 | #4 |
| Massachusetts | 104.3 | #1 |
| New Hampshire | 104.2 | #2 |
| Vermont | 103.8 | #3 |
| Maine | 103.4 | #6 |
| New Jersey | 102.8 | #8 |
| Rhode Island | 101 | #17 |
| New York | 100.7 | #18 |
| Pennsylvania | 100.5 | #20 |
| Delaware | 99.8 | #24 |
Frequently Asked Questions
What is the average IQ in Connecticut?
Connecticut's estimated average IQ is 103.1, ranking #4. The state's wealthy suburbs drive high averages, though significant achievement gaps exist between affluent and low-income districts.
Why does Connecticut have a large achievement gap?
Connecticut's extreme wealth inequality creates two parallel education systems — excellent, well-funded suburban schools alongside underfunded urban districts. This gap is among the largest of any US state.
How does Connecticut compare to New York?
Connecticut (103.1) outranks New York (100.7) despite being smaller. Connecticut's suburban wealth and lack of large-scale urban poverty concentrations contribute to its higher average.
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