In 2005, the District had a total population of 582,049, according to revised estimates produced by the US Census Bureau.  Population estimates have also been revised upwards for 2001 through 2004. In 2005, there were 253,500 households in the District, according to estimates generated by the DC Office of Planning, with the average household size of 2.1 people.  Families made up 44 percent of the households in the District. This figure includes both married-couple families (22 percent) and other families (22 percent).  The median monthly housing costs for mortgaged owners was $1,662, non-mortgaged owners $426, and renters $832. Thirty-three percent of owners with mortgages, 18 percent of owners without mortgages, and 46 percent of renters in the District spent 30 percent or more of household income on housing.