Hours Of Operations Union Market Maryland Gaithersburg Union Market Hours of Operation and Locations in Gaithersburg, MD 4.5 - 83 votes 1 Locations in Gaithersburg www.firstmarketbank.com Union Market Hours Category: Grocery & Market Union Market - Gaithersburg, MD 20879 8035 Snouffer School Rd(301) 330-5500 View Store Details Explore GaithersburgView More Apparel Sam's ClubCostcoRoss Dress for LessBurlington Coat FactoryKmart Sports CostcoTargetSports AuthorityLA FitnessDick's Sporting Goods Jewelry Sam's ClubCostcoBurlington Coat FactoryLord & TaylorZales Recommend For You Unique Sports United Carpet Cleaning United Deli & Grocery United Equipment & Supply Company United Market United Sport Apparel United Sports United True Value Hardware Universal Fire Proof Door Company Universal Sporting Goods