Average IQ in Idaho: Data, Rankings and What It Means

Idaho is one of the fastest-growing states in America and one of the most interesting from a cognitive performance trajectory perspective. The Gem State's estimated average IQ of approximately 99.4 places it at around 28th nationally — near the national mean of 98 and slightly above it, but below the Mountain West leaders of Colorado and Utah. This near-average figure, however, conceals a trajectory that is meaningfully upward: Boise has emerged as one of the most significant technology growth stories in the Mountain West, the Idaho National Laboratory employs one of the most analytically demanding scientific workforces of any rural community in the country, and significant in-migration from California and other high-cost states is bringing educated professionals who are gradually reshaping the state's demographic and cognitive profile. Idaho is a state whose current cognitive average understates where it is headed.

How Is Average IQ in Idaho Estimated?

Idaho's cognitive estimate uses McDaniel's NAEP-based methodology. Idaho's NAEP scores are near but slightly below the national average — a result that reflects a school system modestly underfunded relative to national peers, with per-pupil spending of $8,260 among the lowest in the country. Its bachelor's degree attainment of approximately 28.8% is below the national mean — reflecting both an economy that has historically not required high credential rates and an LDS cultural influence similar to Utah's that creates pathways through mission service and vocational training that delay or substitute for conventional degree completion. Idaho's proximity to Utah means it shares some of the same cultural and religious characteristics discussed in the article on average IQ in Utah — including the LDS educational culture that produces above-average cognitive outcomes relative to formal attainment metrics.

Idaho's National Ranking

Regional Breakdown

Boise's Technology Transformation

Boise's emergence as a technology hub over the past two decades is one of the more remarkable growth stories in the Mountain West. The city has long had significant technology employment through Micron Technology — the only major US semiconductor manufacturer, headquartered in Boise since 1978 — and Hewlett-Packard's Boise campus, which was among the first major technology operations established outside California's Silicon Valley. These anchors created a local culture of technology employment and engineering education that has compounded significantly in the internet era.

More recently, Boise has attracted a significant wave of technology companies and remote workers from California, Washington, and Oregon, drawn by lower housing costs, no state capital gains tax, and quality of life amenities that make it attractive to professionals who can work remotely. Clearwater Analytics, Bodybuilding.com (acquired by Liberty Media), Healthwise, and dozens of smaller technology companies have established Boise presences, creating an increasingly diverse technology ecosystem around the Micron and HP anchors. Boise State University has responded to this demand by expanding its computer science, data analytics, and engineering programmes, creating a local graduate talent pipeline that is growing rapidly. The Boise metro's estimated cognitive average of 101.5 — significantly above the state mean — reflects this technology transformation in progress.

Education Infrastructure: Idaho's Numbers

The California In-Migration Effect

Idaho has been one of the top destinations for California out-migrants over the past decade, with tens of thousands of Californians relocating to the Boise area annually. This migration flow brings a significant number of college-educated professionals — engineers, healthcare workers, educators, business owners, and remote workers — whose educational attainment and professional backgrounds are above both the Idaho and national averages. The cumulative effect of this in-migration on Idaho's bachelor's degree attainment rate, median household income, and occupational complexity profile is already visible in census data, and will become increasingly prominent as the migrant cohort ages into the 25+ population used for attainment calculations.

The in-migration has also brought cultural and professional diversity that is gradually diversifying the types of employment available in the Boise economy — including more professional services, finance, real estate, and technology roles than the pre-migration Idaho economy supported. This economic diversification is likely to compound over time, as each wave of new residents brings skills and professional networks that create employment opportunities for subsequent arrivals. Idaho's cognitive performance trajectory is therefore unusually dependent on in-migration dynamics in a way that few other states in this series can match. As the research on verbal versus non-verbal IQ shows, diverse professional environments that demand both analytical and communicative reasoning tend to produce stronger cognitive outcomes than narrowly specialised single-industry economies.

Micron Technology: Idaho's Semiconductor Anchor

Micron Technology's presence in Boise is one of the most significant cognitive anchors of any single company in any state in this series. Founded in 1978 in a converted dental office in Boise, Micron grew to become the only major US-based manufacturer of dynamic random access memory (DRAM) chips and NAND flash memory — the semiconductors that power everything from smartphones to data centres. With a global workforce exceeding 40,000 and its largest single campus in Boise, Micron employs thousands of semiconductor process engineers, materials scientists, electrical engineers, quality engineers, and manufacturing technologists who collectively represent one of the highest concentrations of technically trained analytical professionals of any single employer in the Mountain West.

Micron's importance to Idaho extends beyond direct employment. The company's presence created a regional supplier and services ecosystem, drove Boise State University to develop stronger engineering and materials science programmes, and established Idaho as a legitimate technology state in the minds of engineers and technology companies nationally. The CHIPS and Science Act of 2022 — which committed over $50 billion to domestic semiconductor manufacturing — is expected to drive significant expansion of Micron's Idaho operations in the coming years, bringing an influx of additional semiconductor engineers and researchers to the Boise area that will further elevate the metro's cognitive profile.

Agriculture and Food Science in Idaho

Idaho is famous for its potatoes — producing approximately one-third of the United States' total potato supply — but the agricultural science behind modern Idaho potato farming is considerably more sophisticated than the crop's humble reputation suggests. Idaho's potato industry involves complex soil science, irrigation management, pest resistance research, and post-harvest storage technology that is driven by research from the University of Idaho's College of Agricultural and Life Sciences. Simplot, the largest private employer in Idaho and one of the largest potato processors in the world, employs food scientists, process engineers, and agricultural researchers whose work spans crop genetics, frozen food technology, and food safety systems.

The University of Idaho in Moscow is the state's flagship research institution with particular strengths in agricultural science, natural resources, engineering, and the social sciences. UI's research on drought-resistant crop varieties, soil health, and sustainable irrigation systems is internationally relevant as water scarcity concerns grow across the American West. Boise State University, meanwhile, has grown from a regional teaching institution into a research university with competitive programmes in engineering, computer science, and materials science — with research funding growing rapidly in response to both Micron's presence and the broader Boise technology ecosystem. The relationship between research university quality and local cognitive performance is a theme explored throughout this series, as highlighted in the article on average IQ in Wisconsin.

Is Idaho's Ranking Sustainable?

Idaho's cognitive trajectory is among the most clearly upward of any state in this series. The combination of Micron's expansion plans driven by CHIPS Act funding, Boise's growing technology ecosystem, ongoing California in-migration, and Boise State's research programme growth creates multiple reinforcing positive feedback loops that are likely to drive Idaho's aggregate cognitive average meaningfully higher over the next decade. The key constraint remains the education funding gap — per-pupil spending of $8,260 is not sufficient to build the educational infrastructure a rapidly growing state needs, and as Idaho's population continues to expand rapidly, the school-age cohort is growing faster than the tax base that funds it.

Idaho's political environment has shown some willingness to address this constraint through targeted education investments, but the state's fiscal conservatism has limited the scale of school spending increases relative to population growth. Without meaningful progress on education funding, Idaho risks the scenario where its technology sector growth creates a professional workforce cognitively well above the state mean while an underfunded school system produces a growing cohort of students whose foundational analytical development falls short of what the economy increasingly demands. The research on what actually builds cognitive capacity consistently shows that K–12 foundational development matters more than any subsequent intervention — which makes investment in Idaho's underfunded schools a high-return cognitive and economic policy priority.

What Idaho's Average Means for Individuals

Idaho's estimated average IQ of 99.4 — near the national mean — represents a state in transition rather than a stable equilibrium. Boise's technology growth, INL's nuclear research workforce, and ongoing California in-migration are pulling the aggregate upward, while low per-pupil school spending and below-average degree attainment moderate the headline figure. Idaho's current average significantly understates where the state is headed over the next decade as its technology ecosystem matures and its in-migrant professional population becomes a larger share of the workforce. For individuals who want a precise personal cognitive benchmark independent of Idaho's transitional average, the Advanced IQ Test at DesperateMinds measures reasoning across multiple cognitive domains in approximately 40 minutes, giving you a complete profile benchmarked against national norms.