Nassau and Suffolk continue to rank among the healthiest counties in the state, a study has found.

The sixth annual study by the Robert Wood Johnson Foundation and the University of Wisconsin, released Wednesday, ranked Nassau fifth and Suffolk 15th for overall health among New York's 62 counties.

Last year, Nassau was sixth and Suffolk 15th -- which it has been for the past four years.

For the third year in a row, Nassau ranked No. 1 in the "health factors" category, which includes smoking and obesity.

Nassau also ranked first in "clinical care," "social and economic" and "physical environment factors," such as clean water.

"This report is a testament to the combined efforts of government, businesses, health care providers, schools and community-based organizations working together to improve the health and safety of Nassau County residents," County Executive Edward Mangano said in a statement.

advertisement | advertise on newsday

For the past four years, Suffolk has ranked eighth in health factors.

Nassau ranked third in the state for "length of life" and 20th overall for quality of life.

Suffolk ranked 11th for "length of life" and 23rd for "quality of life," which includes such indicators as low-birth weight babies and the percentage of residents in poor or fair health.

Statewide, Rockland County ranked first and the Bronx last in overall health.

For more information, visit