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                                                                    EXHIBIT 23.1
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
   
     We hereby consent to the use in the Prospectus constituting part of this
Registration Statement on Form S-3 of our report dated January 10, 1998, except
for Note 1 which is as of April 7, 1998 and Notes 3 and 10 which are as of April
28, 1998, relating to the financial statements of ITT Educational Services, Inc.
which appear in such Prospectus. We also consent to the incorporation by
reference in the Prospectus constituting part of this Registration Statement on
Form S-3 of our report dated January 10, 1998 appearing on page F-1 of ITT
Educational Services, Inc. Annual Report on Form 10-K for the year ended
December 31, 1997. We also consent to the references to us under the headings
"Experts" and "Selected Financial Data" in such Prospectus. However, it should
be noted that Price Waterhouse LLP has not prepared or certified such "Selected
Financial Data."
    
 
PRICE WATERHOUSE LLP
Indianapolis, Indiana
   
April 29, 1998