Islamic Society of Baltimore/Masjid Al-Rahmah, located in the suburbs of Baltimore, in close proximity to the nation’s capital Washington, D.C. is among the largest growing Islamic Centers in the nation. Thousands of families are affiliated with the Center. ISB came into existence in 1969. ISB/Masjid Al-Rahmah occupied its current facility on 6631 Johnnycake Road, Windsor Mill, Maryland 21244 in 1983. From its inception, the Masjid is open 24-7 for Muslims to offer their daily prayers.