Obesity Rates by State: Where Americans Are Healthiest and Where They're Not

West Virginia's adult obesity rate hit 41.5% in the most recent data, meaning more than 4 in 10 adults in that state qualify as obese. Colorado, at 25.0%, is the only state that has held below the 26% mark as every other state and territory now clears 25%.

The Most Obese States in America

The bottom of the rankings is concentrated in the South and lower Midwest. West Virginia leads at 41.5%, followed closely by Oklahoma, Louisiana, and Mississippi, each posting rates at or above 40%. Arkansas, Alabama, and Kentucky are not far behind, all sitting above 38%.

These states share a few common threads: lower median household incomes, higher rates of food insecurity, and, in many cases, limited access to fresh food in rural areas. Healthcare infrastructure is also thinner in these states, which compounds the problem over time.

It is worth noting that these are also states where the cost of living is lower on paper. But chronic disease expenses can erase those savings quickly. A household dealing with obesity-related conditions, including type 2 diabetes, cardiovascular disease, and joint problems, faces thousands of dollars in annual out-of-pocket costs even with insurance.

The Healthiest States by Obesity Rate

Colorado leads the nation at 25.0% adult obesity prevalence. Hawaii, Massachusetts, and California round out the top tier, all coming in below 28%. The District of Columbia, though not a state, also ranks among the lowest.

These states tend to have higher median incomes, denser urban populations with walkable infrastructure, and stronger public health investment. Colorado in particular benefits from an outdoor culture that keeps physical activity embedded in daily life for a large share of residents.

The Mountain West and New England states consistently outperform the national average of 34.2%. Vermont, Connecticut, and Utah all sit in the lower third of obesity rates nationally.

Childhood Obesity: A Separate but Overlapping Problem

Adult obesity data tells part of the story. Childhood obesity rates by state follow a similar geographic pattern but with some differences in severity.

Mississippi and West Virginia again rank near the top for childhood obesity prevalence. States in the South generally see higher rates among children ages 10 to 17 than their adult figures alone would suggest, pointing to a pipeline problem: children in these states are entering adulthood at a health disadvantage.

Colorado, Utah, and Massachusetts again rank among the lowest for childhood obesity. The correlation between adult and childhood rates within a state is strong, which means the gap between high- and low-obesity states is unlikely to close quickly without structural changes.

What Obesity Rates Mean for the Cost of Living

Obesity rates are not just a health statistic. They affect the real cost of living in measurable ways.

States with high obesity prevalence tend to carry higher Medicaid expenditures per capita, which feeds into state budget pressure and, in some cases, higher tax burdens or reduced public services. Employer-sponsored insurance premiums in high-obesity states are also generally higher, hitting workers directly in take-home pay.

If you are a retiree evaluating where to relocate, a state's health profile matters beyond the tax code. States like West Virginia and Mississippi offer very low costs on paper, but healthcare access, quality of local medical facilities, and population health trends all factor into what retirement actually costs. Our post on best states for retirees to avoid taxes covers the tax side of that equation, but the health picture is equally important.

For working-age adults weighing a move, the true cost of living in high-tax states is one piece of the puzzle. Healthcare costs driven by regional obesity and chronic disease rates are another piece most calculators undercount.

Use our state comparison calculator to weigh all of these factors together, including taxes, cost of living, and quality-of-life indicators like health outcomes, before committing to a move.

Key Takeaways

• West Virginia has the highest adult obesity rate in the nation at 41.5%. Oklahoma, Louisiana, and Mississippi all exceed 40%.
• Colorado is the healthiest state by this measure at 25.0%. Every U.S. state now has an adult obesity rate of at least 25%.
• The national adult obesity rate stands at 34.2%, meaning roughly 1 in 3 American adults qualifies as obese, a figure that directly affects healthcare costs, insurance premiums, and state budget pressures in ways that ripple through the real cost of living.

Compare your current state against your target state across health outcomes, taxes, and cost of living at liveordiehere.com.