Table 4. Estimates of the Total Housing Inventory for the United States: Fourth Quarter 2002 and 2001 (Estimates are in thousands and may not add to total, due to rounding) Fourth Fourth Standard quarter quarter error on Standard 2002 Type 2002 2001 2002 error on Percent estimate estimate estimate difference of total All housing units................. 124,009 121,963 213 314 100 Occupied........................ 108,999 107,633 226 332 88 Owner occupied................ 74,418 73,215 229 335 60 Renter occupied............... 34,581 34,418 183 269 28 Vacant.......................... 15,010 14,330 129 187 12 Year-round vacant............. 11,531 10,912 114 165 9 For rent.................... 3,638 3,336 66 94 3 For sale only............... 1,308 1,353 40 59 1 Rented or sold, awaiting occupancy.......... 853 743 32 45 1 Held off market............. 5,732 5,480 82 119 5 For occasional use........ 2,037 1,898 49 71 2 Temporarily occupied by persons with usual residence elsewhere. 1,024 1,058 35 52 1 For other reasons......... 2,671 2,524 56 81 2 Seasonal vacant............... 3,479 3,418 64 94 3