Table 4.  Estimates of the Total Housing Inventory for the
                United States:  Fourth Quarter 2006 and 2007

(Estimates are in thousands and may not add to total, due to rounding)


                                    Fourth     Fourth        90-Percent
                                   quarter   quarter   Confidence Interval (±)a 2007
Type                                 2006      2007    of 2007       of       Percent
                                   estimate  estimate  estimate  difference of total

All housing units.................  126,651   128,649       (X)        (X)       100

  Occupied........................  109,932   110,878       302        274        86
    Owner occupied................   75,763    75,164       629        429        58
    Renter occupied...............   34,169    35,714       544        418        28

  Vacant..........................   16,719    17,771       369        325        14
    Year-round vacant.............   12,675    13,324       361        309        10
      For rent....................    3,779     3,838       174        194         3
      For sale only...............    2,100     2,179       112        140         2
      Rented or sold,
      awaiting occupancy..........    1,015     1,010        70         98         1
      Held off market.............    5,783     6,297       256        219         5
        For occasional use........    1,897     2,005       147        126         2
        Temporarily occupied
        by persons with
        usual residence elsewhere.    1,137     1,110       110         96         1
        For other reasons.........    2,749     3,182       185        155         2

    Seasonal vacant...............    4,044     4,447       242        207         3


    aA 90-percent confidence interval is a measure of an estimate's reliability.  The larger 
    the confidence interval is, in relation to the size of the estimate, the less reliable the estimate.
    (X)  Not Applicable.  Since the number of housing units is set equal to an independent national 
     measure, there is no sampling error, and hence no confidence interval.
NOTE:  Since first quarter 2003, the Current Population Survey/Housing Vacancy Survey (CPS/HVS) estimates 
     have been controlled to independent housing unit counts.  Doing so should make the CPS/HVS estimate of 
     housing units more  comparable to other Census Bureau housing surveys.