California had the nation's ninth highest rate of medically uninsured residents in 2010, according to a new Census Bureau report.
The report -- which covers those under 65 years old, the age at which Medicare kicks in -- found that 6.7 million of the state's 32.5 million under-65 residents lacked medical insurance, for a rate of 20.7 percent.
Texas had the nation's highest rate of 26.3 percent, while Massachusetts, at 5.2 percent, was the lowest, thanks largely to a program that its former governor, Republican presidential nominee Mitt Romney, championed. Most of the states with rates higher than California's were in the South, but they include adjacent Nevada at 25.1 percent.
Within California, the most populous county, Los Angeles, also had the highest medically uninsured rate, 25.9, virtually identical to Texas' rate. The state's lowest rate, 11.8 percent, was in Marin County, which also has the state's highest personal incomes.