<ARTICLE>                     5
<CIK>                         0000870541               
<NAME>                        Public Storage Properties XX, Inc.
<MULTIPLIER>                                                           1
<CURRENCY>                                                            US
       
                                                                  
<PERIOD-TYPE>                                                      9-mos
<FISCAL-YEAR-END>                                            Dec-31-1997
<PERIOD-START>                                                Jan-1-1997
<PERIOD-END>                                                 Sep-30-1997
<EXCHANGE-RATE>                                                        1
<CASH>                                                         1,053,000
<SECURITIES>                                                     296,000
<RECEIVABLES>                                                     73,000
<ALLOWANCES>                                                           0
<INVENTORY>                                                            0
<CURRENT-ASSETS>                                               1,422,000
<PP&E>                                                        17,713,000
<DEPRECIATION>                                               (3,525,000)
<TOTAL-ASSETS>                                                15,610,000
<CURRENT-LIABILITIES>                                            751,000
<BONDS>                                                                0
<PREFERRED-MANDATORY>                                                  0
<PREFERRED>                                                            0
<COMMON>                                                          12,000
<OTHER-SE>                                                    14,847,000
<TOTAL-LIABILITY-AND-EQUITY>                                  15,610,000
<SALES>                                                                0
<TOTAL-REVENUES>                                               2,564,000
<CGS>                                                                  0
<TOTAL-COSTS>                                                  1,350,000
<OTHER-EXPENSES>                                                  88,000
<LOSS-PROVISION>                                                       0
<INTEREST-EXPENSE>                                                     0
<INCOME-PRETAX>                                                1,126,000
<INCOME-TAX>                                                           0
<INCOME-CONTINUING>                                            1,126,000
<DISCONTINUED>                                                         0
<EXTRAORDINARY>                                                        0
<CHANGES>                                                              0
<NET-INCOME>                                                   1,126,000
<EPS-PRIMARY>                                                       1.22
<EPS-DILUTED>                                                        .93