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The US in 2012, a country of around 313 million people has around 131.8 million houses.
Of these, around 112 million houses are occupied year-round, 77 million by owners and 35 million by renters. Half of the houses were built before 1973; 32 million are in central cities and 52 million in suburbs. 76 million are single family and 6 million condominiums. 85% of US homes have air conditioning, 48% have a separate dining room and 34% have a working fireplace. Approximately 5 million houses were built in 2009, 2010 and about 3 million in 2011.
