PROSPECTUS SUPPLEMENT                          FILED PURSUANT TO RULE 424(B)(3)
TO PROSPECTUS DATED JUNE 13, 1997                    REGISTRATION NO. 333-28451


                                   $63,400,000

                                   ITRON, INC.
                 6-3/4% Convertible Subordinated Notes Due 2004
                                       and
                             Shares of Common Stock
                        Issuable Upon Conversion Thereof
                                       and
                        2,638,600 Shares of Common Stock


         This  Prospectus  Supplement  relates to the resale by the holders (the
"Selling  Securityholders")  of 6 3/4% Convertible  Subordinated  Notes Due 2004
(the "Notes") of Itron,  Inc. (the "Company") and the shares of Common Stock, no
par value (the "Common  Stock"),  of the Company  issuable  upon the  conversion
thereof (the "Conversion Shares").

         This  Prospectus  Supplement  should  be read in  conjunction  with the
Prospectus dated June 13, 1997 (the "Prospectus"), which is to be delivered with
this Prospectus  Supplement.  All capitalized terms used but not defined in this
Prospectus Supplement shall have the meanings given them in the Prospectus.

         The  information  in the table  appearing  under the  heading  "Selling
Securityholders"  in the  Prospectus is  superseded  in part by the  information
appearing in the table below:




                                                                                                            Securities Beneficially
                        Notes and Conversion Shares                  Shares                                   Owned After Offering
                  ----------------------------------------------------------------------                    -----------------------
                   Principal
                   Amount of
                     Notes                     Number of          Shares       Number        Securities to               Percentage
                  Beneficially  Percentage    Conversion       Beneficially   of Shares    be Sold--Percentage            of Common
                  Owned that     of Notes     Shares that       Owned Prior    that May     of Common Stock                 Stock
     Name         May Be Sold   Outstanding  May Be Sold (1)    to Offering    Be Sold      Outstanding (2)     Amount   Outstanding
- -----------------------------------------------------------------------------------------------------------------------------------
                                                                                                
                                                    
Credit Suisse
First Boston      13,275,000       20.9        560,127                                           3.7                0         --
Corp. (3)

Any other
holder of
Notes or
future
transferee,       
pledgee, donee
or successor
of or from any
such other
holder.(4)(5)      2,875,000                   121,308                                           0.8                0         --
- -----------------------------------------------------------------------------------------------------------------------------------


(1)  Assumes  conversion  of the  full  amount  of  Notes  held by such  Selling
     Securityholder  at the initial  conversion price of $23.70 per share;  such
     conversion  price is subject to adjustment as described under  "Description
     of  Notes--Conversion."  Accordingly,  the number of shares of Common Stock
     issuable upon conversion of the Notes may increase or decrease from time to
     time.  Under  the terms of the  Indenture,  fractional  shares  will not be
     issued  upon  conversion  of the  Notes;  cash  will  be  paid  in  lieu of
     fractional shares, if any.

(2)  Computed in accordance with Rule 13d-3(d)(i) promulgated under the Exchange
     Act, and based upon  14,600,212  shares of Common Stock  outstanding  as of
     November 30, 1997,  treating as outstanding the number of Conversion Shares
     issuable upon the assumed conversion by the named Selling Securityholder of
     the full amount of such Selling  Securityholder's  Notes,  but not assuming
     the  conversion  of the  Notes or the  exercise  of  warrants  of any other
     Selling Securityholder.

(3)  Represents an additional  $650,000 principal amount of Notes acquired after
     November 3, 1997.

(4)  Information  concerning other Selling  Securityholders will be set forth in
     supplements to this Prospectus from time to time, if required.

(5)  Assumes  that any other  holders  of  Notes,  or any  further  transferees,
     pledgees,  donees or successors of or from any such other holders of Notes,
     do not  beneficially  own any Common  Stock  other  than the  Common  Stock
     issuable upon conversion of the Notes at the initial conversion rate.

                               ------------------

               FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD BE
               CONSIDERED IN CONNECTION WITH AN INVESTMENT IN THE
                  SECURITIES OFFERED HEREBY, SEE "RISK FACTORS"
                     BEGINNING ON PAGE 6 OF THE PROSPECTUS.
                               ------------------

          THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
  SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS
    THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
            PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS.
            ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                               ------------------

           The date of this Prospectus Supplement is December 8, 1997