Average IQ in California: 2026 Data, Rankings & Analysis
Quick answer — California
Estimated average IQ in California: ~99.2 (national rank #38 of 50). Population ~39M; capital Sacramento. Silicon Valley and UC system drive extreme cognitive-demand jobs; large immigrant professional class raises metro averages despite wide inequality.
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California's estimated average IQ of 99.2 places it at rank #38 among US states in the West region. Figures reflect education investment and poverty — not individual potential.
California data snapshot
Population (approx.)
39 million
Child poverty proxy
~15.8%
K-12 spend rank (proxy)
#38 of 50
California Avg IQ
~99.2
US Average
~98
National Rank
#38
vs US Avg
+1.2 pts
California vs neighboring and peer states
| State | Avg IQ | Rank | Region |
|---|---|---|---|
| Texas | 99.3 | #37 | South |
| South Carolina | 99 | #39 | South |
| Wyoming | 102.3 | #12 | West |
| Montana | 102.2 | #13 | West |
Important context
State IQ averages reflect policy and economics — not genetics. Silicon Valley and UC system drive extreme cognitive-demand jobs; large immigrant professional class raises metro averages despite wide inequality.
California in the national rankings
| State | Avg IQ | Rank |
|---|---|---|
| Massachusetts | 104.3 | #1 |
| New Hampshire | 104.2 | #2 |
| California | 99.2 | #38 |
| Louisiana | 95.3 | #49 |
| Mississippi | 94.2 | #50 |
Factors behind California's score
Education investment
California K-12 spending ranks near #38 nationally in our proxy model — strongly correlated with average IQ estimates.
Poverty & inequality
Child poverty proxy ~15.8% in California affects nutrition, stress, and school readiness in early childhood.
West labor market
The West economy shapes migration of college graduates in and out of Sacramento metro areas versus rural counties.
Urban vs rural mix
California's mix of metros and rural districts creates wider within-state IQ variance than a single statewide number suggests.
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Frequently asked questions — California
What is the average IQ in California?
The estimated average IQ in California is approximately 99.2, placing it at rank #38 among US states. This is above the US average of ~98 and reflects systemic factors including education funding, poverty rates, and access to resources — not inherent differences in cognitive potential.
Why does California rank where it does in average IQ?
California's ranking reflects environmental factors: education spending per pupil (approximate rank #38), poverty (~15.8% child poverty proxy), and urban/rural opportunity. Silicon Valley and UC system drive extreme cognitive-demand jobs; large immigrant professional class raises metro averages despite wide inequality.
Is the IQ data for California accurate?
State IQ estimates are based on multiple studies and correlate with educational achievement data. Capital Sacramento and a population of ~39M shape labor markets and school systems. Individual variation within California remains enormous.
How does California's IQ compare to the US average?
California's estimated average IQ of 99.2 is approximately 1.2 points above the US average of 98.
Can I score above average even if I'm from California?
Absolutely. State averages are population statistics — they say nothing about individual potential. Your IQ reflects your specific education, environment, and opportunities, not your state of residence.
How does California compare to neighboring states on average IQ?
California (≈99.2) ranks #38 nationally. Compare with Texas and South Carolina in the full table on our Average IQ by State hub.
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