1990 Census of Population and Housing 040 Maryland 050 Montgomery County Total housing units........................................... 295,723 YEAR STRUCTURE BUILT 1989 to March 1990.................................................. 7,832 1985 to 1988........................................................ 43,167 1980 to 1984........................................................ 33,732 1970 to 1979........................................................ 60,289 1960 to 1969........................................................ 63,985 1950 to 1959........................................................ 48,890 1940 to 1949........................................................ 22,325 1939 or earlier..................................................... 15,503 BEDROOMS No bedroom.......................................................... 5,269 1 bedroom........................................................... 37,511 2 bedrooms.......................................................... 60,011 3 bedrooms.......................................................... 96,064 4 bedrooms.......................................................... 72,027 5 or more bedrooms.................................................. 24,841 SELECTED CHARACTERISTICS Lacking complete plumbing facilities................................ 544 Lacking complete kitchen facilities................................. 492 Condominium housing units........................................... 38,624 SOURCE OF WATER Public system or private company.................................... 283,232 Individual drilled well............................................. 11,452 Individual dug well................................................. 944 Some other source................................................... 95 SEWAGE DISPOSAL Public sewer........................................................ 278,172 Septic tank or cesspool............................................. 17,024 Other means......................................................... 527 Occupied housing units........................................ 282,228 HOUSE HEATING FUEL Utility gas......................................................... 161,338 Bottled, tank, or LP gas............................................ 2,632 Electricity......................................................... 87,736 Fuel oil, kerosene, etc............................................. 28,720 Coal or coke........................................................ 28 Wood................................................................ 865 Solar energy........................................................ 42 Other fuel.......................................................... 451 No fuel used........................................................ 416 YEAR HOUSEHOLDER MOVED INTO UNIT 1989 to March 1990.................................................. 58,111 1985 to 1988........................................................ 99,039 1980 to 1984........................................................ 39,780 1970 to 1979........................................................ 44,676 1960 to 1969........................................................ 24,731 1959 or earlier..................................................... 15,891 TELEPHONE No telephone in unit................................................ 2,325 VEHICLES AVAILABLE Occupied housing units............................................ 282,228 None................................................................ 19,741 1................................................................... 90,556 2................................................................... 118,572 3 or more........................................................... 53,359 MORTGAGE STATUS AND SELECTED MONTHLY OWNER COSTS Specified owner-occupied housing units.............................. 164,685 With a mortgage................................................... 136,289 Less than $300.................................................. 678 $300 to $499.................................................... 6,755 $500 to $699.................................................... 12,585 $700 to $999.................................................... 26,140 $1,000 to $1,499................................................ 47,115 $1,500 to $1,999................................................ 22,843 $2,000 or more.................................................. 20,173 Median (dollars)................................................ 1,202 Not mortgaged..................................................... 28,396 Less than $100.................................................. 51 $100 to $199.................................................... 1,445 $200 to $299.................................................... 9,622 $300 to $399.................................................... 9,216 $400 or more.................................................... 8,062 Median (dollars)................................................ 330 SELECTED MONTHLY OWNER COSTS AS A PERCENTAGE OF HOUSEHOLD INCOME IN 1989 Specified owner-occupied housing units.............................. 164,685 Less than 20 percent.............................................. 82,336 20 to 24 percent.................................................. 26,131 25 to 29 percent.................................................. 20,610 30 to 34 percent.................................................. 12,791 35 percent or more................................................ 22,456 Not computed...................................................... 361 GROSS RENT Specified renter-occupied housing units............................. 89,857 Less than $200.................................................... 2,490 $200 to $299...................................................... 1,356 $300 to $499...................................................... 6,040 $500 to $749...................................................... 36,242 $750 to $999...................................................... 27,416 $1,000 or more.................................................... 14,748 No cash rent...................................................... 1,565 Median (dollars).................................................. 740 GROSS RENT AS A PERCENTAGE OF HOUSEHOLD INCOME IN 1989 Specified renter-occupied housing units............................. 89,857 Less than 20 percent.............................................. 24,483 20 to 24 percent.................................................. 15,654 25 to 29 percent.................................................. 11,931 30 to 34 percent.................................................. 8,712 35 percent or more................................................ 26,572 Not computed...................................................... 2,505