PRINCETON - (AP) - Hunterdon County is considered New Jersey's healthiest county and Cumberland County the least healthy in a survey released by the Robert Wood Johnson Foundation.

The foundation and the University of Wisconsin Population Health Institute examine how education, housing, violent crime, jobs, diet and exercise influence the health of residents.

The rankings show the counties that score better nationally have higher college attendance, fewer preventable hospital stays and better access to parks and gyms.

The counties that rank lower have more smokers, teen births and alcohol-related motor vehicle accident deaths.

Hunterdon is followed by Somerset, Morris, Bergen, and Middlesex counties as the healthiest.

Atlantic, Camden, Salem, and Essex counties are among the least healthy.