Hours Of Operations Discount Mart Maryland Capitol Heights 20743 Discount Mart Hours of Operation and Location in Capitol Heights, MD 20743 4.5 - 98 votes 5944 Martin Luther King Jr Hwy, Capitol Heights, MD 20743 (301) 883-0515 Get Directions Discount Mart Hours Category: Apparel Grocery & Market Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore Capitol HeightsView More Apparel TJ MaxxBig LotsH & MRainbowTalbots Sports VansBasic BasicModellsModell's Sporting GoodsTaf-The Athlete's Foot Recommend For You Bed Bath & Beyond A Nails A Salon Absolute Locksmith A & A Locksmith A Direct Dish Satellite TV E Commerce Net@Work Solutions Incorporated Staples - Computers & Printing