The US is at or very near the worst among OECD countries, and often comparable to developing countires in: infant mortality, child poverty, child health and safety, life expectancy at birth, healthy life expectancy, rate of obesity, disability-adjusted life years, doctors per 1000 people, deaths from treatable conditions, rate of mental health disorders, rate of drug abuse, rate of prescription drug use, incarceration rate, rate of assaults, rate of homicides, rate of firearm deaths, rate of accidental firearm deaths and injuries, income inequality, wealth inequality, and economic mobility.
See for yourself: http://www.oecd.org/statistics/