Hours Of Operations Coinmach Maryland Riverdale 20737 Coinmach Hours of Operation and Location in Riverdale, MD 20737 4.4 - 75 votes 6141 64th Ave, Riverdale, MD 20737 (301) 277-0008 Get Directions Coinmach Hours Category: Apparel Home & Garden Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore RiverdaleView More Apparel Carter'sCoachExpressDebMaurices Recommend For You Boost Mobile MetroPCS Cricket Wireless GNC Dr Jay's Flor SIMPLE Mobile H2O Wireless Dollar Store ADT