Other cities that this person has stayed in are East Rutherford, Herndon, Sterling and 2 other cities. Mercia has reached the age of 54 years. 1970 is the birth year of Mercia. Phone number listed for Mercia is (703) 858-2345. Mercia’s residency is at 514 Ewell Ct, Berryville, Va 22611. Business linked with Mercia is Natural Choice, Llc, The.