<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S FORM 10-Q FOR THE FISCAL QUARTER ENDED SEPTEMBER 23, 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS
</LEGEND>
<CIK> 0000089439
<NAME> MUELLER INDUSTRIES, INC.
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-30-2000
<PERIOD-END>                               SEP-23-2000
<CASH>                                         135,144
<SECURITIES>                                         0
<RECEIVABLES>                                  189,275
<ALLOWANCES>                                     5,165
<INVENTORY>                                    125,083
<CURRENT-ASSETS>                               456,077
<PP&E>                                         515,288
<DEPRECIATION>                                 154,229
<TOTAL-ASSETS>                                 939,610
<CURRENT-LIABILITIES>                          146,597
<BONDS>                                        107,401
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           401
<OTHER-SE>                                     616,663
<TOTAL-LIABILITY-AND-EQUITY>                   939,610
<SALES>                                        926,912
<TOTAL-REVENUES>                               926,912
<CGS>                                          708,370
<TOTAL-COSTS>                                  708,370
<OTHER-EXPENSES>                                99,066
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               7,130
<INCOME-PRETAX>                                119,855
<INCOME-TAX>                                    44,220
<INCOME-CONTINUING>                             75,635
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    75,635
<EPS-BASIC>                                     2.19
<EPS-DILUTED>                                     1.97