Lack of health insurance is a significant, persistent problem in New Jersey. In 2007, more than 1.3 million residents were uninsured – three-fourths were working-age adults 19 to 64 years old. About 15.6 percent of New Jersey residents are uninsured, which is close to the national average, and the U.S. Census Bureau recently ranked New Jersey 34th among states in the percentage of residents with insurance coverage.