Forty-two million Americans live in what the federal government officially classifies as "low-access" food environments — neighborhoods where poverty and distance from full-service grocery stores create a structural barrier to the most basic requirements of good health. Updated data released by the USDA County Health Rankings program on March 25, 2026, confirms that approximately 12.8 percent of the U.S. population continues to live in low-income, low-access census tracts — a figure that has remained stubbornly elevated despite decades of policy efforts to address it.
The consequences of this geographic health inequity are not subtle. Research published in the American Heart Association's flagship journal confirms that food deserts are correlated with high prevalence of overweight, obesity, and premature death, as supermarkets traditionally provide a wider range of healthier food options than the convenience stores, fast food outlets, and smaller grocery stores that tend to dominate in underserved neighborhoods. The USDA's own research links food insecurity to negative health outcomes, including weight gain, asthma, activity limitations, and increased healthcare costs.
