PRINCETON, N.J. -

Hunterdon County is considered New Jersey's healthiest county.

A national survey of county health statistics conducted by the Robert Wood Johnson Foundation and University of Wisconsin shows Morris, Somerset, Bergen and Middlesex counties rounded out the top five.

Cumberland was New Jersey's least healthy county. It was followed by Salem, Essex and Camden counties.

The survey compares how long and how well people live, depending on multiple factors that include childhood poverty, rates of smoking, obesity levels and access to physicians and dentists.