Hours Of Operations GNC New Hampshire Somersworth GNC Hours of Operation and Locations in Somersworth, NH 4.9 - 150 votes 2 Locations in Somersworth GNC Hours Category: Beauty & Health GNC - Somersworth, NH 03878 160 tri City Road, High Street & tri City Rd(603) 740-9559 View Store Details GNC - Somersworth, NH 03878 341 High Street View Store Details Explore SomersworthView More Apparel TJ MaxxCatherinesDress BarnCoachOlympia Sports Sports TargetVansOlympia Sports Recommend For You Cotton on Bally Total Fitness Eastern Mountain Sports Trader Joe's The Athlete's Foot Diane's Beachwear Bottega Veneta Hanna Andersson Louis Vuitton Sportsman's Warehouse