According to the 2001 government census, there were 105,686 housing units within the country. About 18% were private villas (single family, independent structure homes). There were 8,076 apartment buildings containing a total of about 36,320 flats. About 72% of all units were connected to the public water system. About 14.8% of homes used relied on bottled water. About 63,374 units were occupied by single (nuclear) families. The greatest number of housing units (32,538) were available in Manama.