<SEC-DOCUMENT>0000723188-17-000013-index.html : 20170331
<SEC-HEADER>0000723188-17-000013.hdr.sgml : 20170331
<ACCEPTANCE-DATETIME>20170331103427
ACCESSION NUMBER:		0000723188-17-000013
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20170331
FILED AS OF DATE:		20170331
DATE AS OF CHANGE:		20170331
EFFECTIVENESS DATE:		20170331

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COMMUNITY BANK SYSTEM, INC.
		CENTRAL INDEX KEY:			0000723188
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				161213679
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13695
		FILM NUMBER:		17728546

	BUSINESS ADDRESS:	
		STREET 1:		5790 WIDEWATERS PKWY
		CITY:			DEWITT
		STATE:			NY
		ZIP:			13214
		BUSINESS PHONE:		8007242262

	MAIL ADDRESS:	
		STREET 1:		5790 WIDEWATERS PARKWAY
		CITY:			DEWITT
		STATE:			NY
		ZIP:			13214

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMMUNITY BANK NA, a subsidiary of Community Bank System Inc
		DATE OF NAME CHANGE:	20130729

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMMUNITY BANK NA, a subsidiary of Community Bank System Inc.
		DATE OF NAME CHANGE:	20130726

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COMMUNITY BANK SYSTEM INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
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<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>formdef14a2017march31proxy.htm
<TEXT>
Document 1 - file: formdef14a2017march31proxy.htm

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>cbufulllogo.jpg
<TEXT>
Document 2 - file: cbufulllogo.jpg

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<SEQUENCE>3
<FILENAME>cbulogo.jpg
<TEXT>
Document 3 - file: cbulogo.jpg

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<SEQUENCE>4
<FILENAME>cbulogomini.jpg
<TEXT>
Document 4 - file: cbulogomini.jpg

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<SEQUENCE>5
<FILENAME>dcsignature.jpg
<TEXT>
Document 5 - file: dcsignature.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>proxyinviteform.jpg
<TEXT>
Document 6 - file: proxyinviteform.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>proxyvotingform.jpg
<TEXT>
Document 7 - file: proxyvotingform.jpg

</DOCUMENT>
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