Published: Sep 13, 2011 8:56 PM EDT

ORLANDO, Fla. (AP) - Florida, the state which led the challenge to President Obama's heath care plan, has the nation's third highest rate of residents without health insurance.

Data released Tuesday by the U.S. Census shows that more than 20 percent of Floridians lacked health insurance during the past three years. The national average was just under 16 percent.

Only Texas and New Mexico have higher rates of residents without health insurance.

Florida's attorney general filed a lawsuit challenging the provisions of Obama's health care plan just minutes after the president signed the health care bill into law in 2010.

Earlier this year, a federal judge in Pensacola ruled that the health care law was unconstitutional. The ruling was appealed to the appellate court in Atlanta.