FORM 5
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
[ ] Form 3 Holdings Reported
[ ] Form 4 Transactions Reported	UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

ANNUAL STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

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                      	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public
Utility Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

IHLENFELD JAY V	2. Issuer Name and Ticker or Trading Symbol

3M CO [MMM]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
Vice President R&D	
(Last)          (First)          (Middle)

3M CENTER	3. Statement for Issuer's Fiscal Year Ended (MM/DD/YYYY)
12/31/2004 		
(Street)

ST. PAUL, MN 55144-1000
(City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)

 	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form Filed by One Reporting Person
___ Form Filed by More than One Reporting Person	

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned	
1.Title of Security
(Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code
(Instr. 8)	4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)	5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)	7. Nature of Indirect Beneficial Ownership
(Instr. 4)	
				Amount	(A) or (D)	Price				
Common Stock   (2)	 	 	   	 	 	 	24938  	D  	 	
Common Stock   (1)	 	 	   	 	 	 	2417  	I  	by 401k/PAESOP  	

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code
(Instr. 8)	5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)	6. Date Exercisable and Expiration Date
(MM/DD/YYYY)	7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)	8. Price of Derivative Security
(Instr. 5)	9. Number of Derivative Securities Beneficially Owned at End of Issuer's Fiscal Year
(Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)	11. Nature of Indirect Beneficial Ownership
(Instr. 4)	
					(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares					
Incentive Stock Option (right to buy)  	$43.35  	 	 	   	  	  	5/9/2001  	5/9/2010  	Common Stock  	2306  	 	2306  	D  	 	
Incentive Stock Option (right to buy)  	$45.85  	 	 	   	  	  	5/13/1998  	5/13/2007  	Common Stock  	1352  	 	1352  	D  	 	
Incentive Stock Option (right to buy)  	$46.675  	 	 	   	  	  	5/12/1999  	5/12/2008  	Common Stock  	2142  	 	2142  	D  	 	
Incentive Stock Option (right to buy)  	$47.5  	 	 	   	  	  	5/11/2000  	5/10/2009  	Common Stock  	2104  	 	2104  	D  	 	
Incentive Stock Option (right to buy)  	$58.625  	 	 	   	  	  	5/8/2002  	5/8/2011  	Common Stock  	1704  	 	1704  	D  	 	
Non-Qualified Stock Option (right to buy)  	$58.625  	 	 	   	  	  	5/8/2002  	5/8/2011  	Common Stock  	13598  	 	13598  	D  	 	
Non-Qualified Stock Option (right to buy)  	$61.85  	 	 	   	  	  	5/14/2004  	5/12/2013  	Common Stock  	39550  	 	39550  	D  	 	
Non-Qualified Stock Option (right to buy)  	$64.4  	 	 	   	  	  	11/20/2002  	5/6/2005  	Common Stock  	902  	 	902  	D  	 	
Non-Qualified Stock Option (right to buy)  	$64.4  	 	 	   	  	  	11/20/2002  	5/12/2006  	Common Stock  	1468  	 	1468  	D  	 	
Non-Qualified Stock Option (right to buy)  	$64.4  	 	 	   	  	  	11/20/2002  	5/7/2010  	Common Stock  	1560  	 	1560  	D  	 	
Non-Qualified Stock Option (right to buy)  	$64.5  	 	 	   	  	  	5/15/2003  	5/14/2012  	Common Stock  	17400  	 	17400  	D  	 	
Non-Qualified Stock Option (right to buy)  	$69.35  	 	 	   	  	  	2/6/2004  	5/11/2007  	Common Stock  	2392  	 	2392  	D  	 	
Non-Qualified Stock Option (right to buy)  	$69.35  	 	 	   	  	  	2/6/2004  	5/12/2008  	Common Stock  	8  	 	8  	D  	 	
Non-Qualified Stock Option (right to buy)  	$69.35  	 	 	   	  	  	2/6/2004  	5/7/2010  	Common Stock  	4644  	 	4644  	D  	 	
Non-Qualified Stock Option (right to buy)  	$81.7  	 	 	   	  	  	10/2/2004  	5/12/2008  	Common Stock  	5979  	 	5979  	D  	 	
Non-Qualified Stock Option (right to buy)  	$81.7  	 	 	   	  	  	10/2/2004  	5/11/2009  	Common Stock  	6073  	 	6073  	D  	 	
Non-Qualified Stock Option (right to buy)  	$81.7  	 	 	   	  	  	10/2/2004  	5/6/2011  	Common Stock  	402  	 	402  	D  	 	
Non-Qualified Stock Option (right to buy)  	$84.4  	 	 	   	  	  	5/12/2005  	5/9/2014  	Common Stock  	43714  	 	43714  	D  	 	

Explanation of Responses:	
(  1) 	The indirectly-held common stock holding (401k/PAESOP) reported in Table I includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.	
(  2) 	The directly-held common stock holding reported in Table I includes shares acquired pursuant to 3M's Dividend Reinvestment Program in transactions exempt from Section 16; this total also includes shares acquired during the fiscal year pursuant to 3M's General Employee Stock Purchase Plan.	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
IHLENFELD JAY V
3M CENTER
ST. PAUL, MN 55144-1000			Vice President R&D		

Signatures		
By: George Ann Biros For: Jay V Ihlenfeld		2/3/2005	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).	
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).	
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.