10 Best Places to Live a Long Life

No. 1: Montgomery County, MD

Life expectancy at birth: 81.31 years

Two top-ranked hospitals (Suburban and Naval, both in Bethesda) help make affluent, educated Montgomery County No. 1 for longevity. Last year, Montgomery's county seat of Rockville unveiled a new pedestrian-friendly town center, bringing together housing, jobs, shopping, and recreation.

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