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

Mississippi ranks last or second-to-last in almost every indicator of educational performance and cognitive development in the United States. The Magnolia State's estimated average IQ of approximately 94.2 places it at around 49th or 50th nationally — the lowest or near-lowest of any state, five to six points below the national mean of 98, and further below the national average than any other state in this series with the possible exception of West Virginia in certain metrics. This figure represents a genuine educational and developmental crisis — not a measure of Mississippians' inherent cognitive capacity, but of the cumulative effect of some of the worst educational infrastructure, highest child poverty rates, and most severe structural inequalities of any state in the country. Understanding Mississippi's cognitive performance requires confronting difficult truths about the relationship between poverty, racial inequality, and educational outcomes — truths that the number 94.2 forces into the open without softening.

How Is Average IQ in Mississippi Estimated?

Mississippi's cognitive estimate uses McDaniel's NAEP-based methodology. Mississippi's NAEP scores are consistently the lowest or among the lowest in the country in both reading and mathematics at the 4th and 8th grade levels. Its bachelor's degree attainment of approximately 23.0% is the lowest of any state. Its child poverty rate of approximately 27% — the highest in the nation — creates pervasive early childhood developmental disadvantages that school-age interventions can only partially address. Its per-pupil K–12 spending of approximately $9,615 is among the lowest nationally. And its occupational profile is dominated by agriculture, retail, healthcare support, and food service — lower-complexity employment categories that do not provide the cognitive stimulation that more analytically demanding work generates.

It cannot be said too clearly or too often: Mississippi's last-place cognitive ranking reflects the environment its public institutions have created, not anything inherent about its residents. As the foundational analysis of average IQ by country and this entire state series consistently demonstrates, population-level cognitive scores are determined by poverty rates, school quality, nutritional access, healthcare quality, and occupational structure — all of which Mississippi scores poorly on by national standards. Mississippi has produced brilliant lawyers, physicians, writers, musicians, scientists, and business leaders whose individual cognitive profiles are entirely unrelated to the state's aggregate average. That average is a measure of structural failure, not of people.

Mississippi's National Ranking

Regional Breakdown

The University of Mississippi and Mississippi State

The University of Mississippi in Oxford is the state's flagship research university. Ole Miss — as it is universally known — has a complex history rooted in the civil rights struggle, having been the site of violent resistance to James Meredith's enrolment as the first Black student in 1962. Today, the university has made significant progress toward inclusion and has genuine academic strengths in law, pharmacy, business, and the arts. Its School of Pharmacy is particularly well-regarded and produces pharmacists who are heavily recruited across the South. The university's Center for Intelligence and Security Studies and its National Food Service Management Institute are research programmes of national significance. Oxford's transformation from a segregated university town to a moderately progressive college community — with a vibrant arts scene, excellent restaurants, and a growing professional class — has made it one of the most unexpectedly pleasant and culturally rich small cities in the Deep South, with cognitive metrics that significantly exceed the state mean.

Mississippi State University in Starkville is the state's land-grant institution with particular strengths in engineering, agricultural science, veterinary medicine, and aerospace engineering. MSU's Raspet Flight Research Laboratory and its High Performance Computing Collaboratory — one of the largest university-based supercomputing facilities in the South — represent genuine research infrastructure that attracts federal research contracts and creates cognitively demanding employment in the Starkville area. The university's research partnerships with the US Army Corps of Engineers, the National Oceanic and Atmospheric Administration, and several defence agencies provide a pipeline of analytical employment that elevates the Columbus–Starkville corridor's cognitive profile above the state mean. MSU's engineering graduates are heavily recruited by aerospace companies, automotive manufacturers, and defence contractors who have located operations in Mississippi in recent decades, creating a modest but growing knowledge-economy sector in the Golden Triangle area of northeast Mississippi.

Education Infrastructure: Mississippi's Numbers

The Mississippi Miracle: Reading Reform

One of the more surprising developments in Mississippi's recent educational history is what education researchers have called the "Mississippi Miracle" in early literacy. Starting around 2013, Mississippi implemented a comprehensive evidence-based reading instruction reform — the Mississippi Literacy Act and its predecessors — that mandated structured phonics-based reading instruction and required students who were not reading proficiently by the end of third grade to be held back rather than promoted. These reforms, combined with investments in teacher training in evidence-based reading instruction, produced measurable improvements in Mississippi's NAEP 4th grade reading scores over the subsequent decade — improvements significant enough to attract national attention as a model for other states with struggling reading outcomes.

The Mississippi reading reform demonstrates that structural educational improvement is possible even in the most challenged state systems when reforms are evidence-based, consistently implemented, and sustained over multiple years. Mississippi's 4th grade reading score — while still below the national average — improved by more NAEP points between 2013 and 2022 than virtually any other state. This is a genuine achievement that deserves recognition alongside the honest acknowledgment of how far Mississippi still has to go. The research on how reading builds crystallised intelligence supports the intuition behind Mississippi's literacy reform: early reading proficiency is one of the most powerful predictors of lifetime analytical development, and investing in it systematically produces cognitive returns that compound across generations.

The Gulf Coast: Mississippi's Cognitive Bright Spot

Mississippi's Gulf Coast region — encompassing Biloxi, Gulfport, Pascagoula, and surrounding communities — has a meaningfully different economic and cognitive profile from the rest of the state. The region's casino economy, while not creating the highest-complexity employment, provides economic stability and tax revenues that fund better-resourced schools than the Delta region. Keesler Air Force Base in Biloxi — which trains Air Force technical personnel in information technology, cyber operations, and weather systems analysis — brings a professionally educated military workforce to the region. Ingalls Shipbuilding in Pascagoula is the largest private employer in Mississippi and one of the nation's primary naval ship constructors, employing naval architects, structural engineers, and marine systems specialists whose work requires sophisticated technical knowledge. The combination of military, defence manufacturing, and casino revenues gives the Gulf Coast a cognitive profile several points above the state mean — and suggests a development model (anchoring analytical employment through defence and industrial partnerships) that could, in principle, be replicated in other Mississippi regions.

Toyota, Nissan and Automotive Manufacturing

One of the more significant economic developments in Mississippi over the past two decades has been the establishment of major automotive assembly plants. Nissan opened a plant in Canton, Mississippi in 2003, and Toyota opened a plant in Blue Springs in 2011. These facilities collectively employ thousands of production workers and hundreds of engineers and technical specialists, creating manufacturing employment with significantly higher cognitive demands than the agricultural and food processing work that previously dominated rural Mississippi's employment landscape. The automotive plants have also attracted supplier companies that bring additional manufacturing engineering and quality assurance employment to regions that previously had very limited exposure to analytical industrial work.

The automotive manufacturing presence represents a meaningful step toward economic diversification in Mississippi, but its cognitive impact on the state's aggregate metrics has been limited by two factors. First, the production worker workforce — while paid well above Mississippi's previous manufacturing wages — performs tasks of moderate rather than high analytical complexity relative to the engineering and management roles that represent the cognitive apex of the automotive industry. Second, the plants are located in rural Mississippi counties where the broader educational and social infrastructure has not been upgraded to match the economic opportunity — meaning many of the highest-skill roles (engineers, programme managers, quality directors) are filled by workers relocating from other states rather than by Mississippi graduates. The cognitive benefit of automotive manufacturing to Mississippi's population depends heavily on whether the state's educational system can produce graduates capable of filling the analytical roles in these plants, which currently it often cannot at sufficient scale.

The Historically Black College and University (HBCU) Legacy

Mississippi has one of the largest concentrations of Historically Black Colleges and Universities of any state — including Jackson State University, Alcorn State University, Mississippi Valley State University, Tougaloo College, and Rust College. These institutions were founded to serve Black students during the era of legal segregation when access to white universities was denied, and they have continued to provide educational access and social mobility pathways for Mississippi's Black community throughout the post-civil rights era. Jackson State University in particular has grown into a doctoral-granting research university with strengths in urban studies, environmental science, and public policy research, and has attracted federal research funding that places it among the more productive HBCUs nationally by research output.

The HBCUs' cognitive contribution to Mississippi is significant but often invisible in state aggregate statistics. Their graduates — many of whom leave Mississippi for professional opportunities in larger cities after completing their degrees — carry the intellectual output of Mississippi's Black intellectual tradition to communities across the country. The physicians, lawyers, educators, public servants, and business leaders produced by Mississippi's HBCUs represent a genuine cognitive export that enriches national institutions while Mississippi itself retains too few of them to significantly shift its aggregate metrics. Reversing this brain drain — creating professional opportunities in Mississippi compelling enough to retain HBCU graduates — is one of the most important long-term cognitive policy challenges the state faces. The relationship between educational access, opportunity, and cognitive outcomes is explored throughout this series, as highlighted in the article on how environmental factors build cognitive capacity.

What Mississippi's Average Means for Individuals

Mississippi's estimated average IQ of 94.2 — the lowest or near-lowest of any state — is the starkest number in this entire series. It represents the cumulative cognitive cost of America's deepest child poverty, worst educational infrastructure, most severe racial achievement gaps, and most profound structural inequalities applied to a population of 2.9 million people across multiple generations. It does not represent the cognitive capacity of any individual Mississippian. Oxford's Ole Miss researchers, Starkville's MSU aerospace engineers, the Pascagoula naval architects at Ingalls, and the physicians and lawyers who have emerged from Mississippi's historically Black colleges and universities all sit well above this mean. The Mississippi Delta's deeply impoverished communities, where children enter kindergarten cognitively behind national peers before they have received a single day of formal schooling due to prenatal poverty effects, sit far below it. The 94.2 captures neither story. For individuals who want a personal cognitive benchmark that reflects their own analytical abilities rather than their state's structural legacy, the Free IQ Test at DesperateMinds provides verbal and non-verbal reasoning measurement in under 20 minutes, giving you a real individual data point that is yours alone — independent of Mississippi's history, its inequalities, or its politics.