<SEC-DOCUMENT>0000719220-18-000083-index.html : 20181018
<SEC-HEADER>0000719220-18-000083.hdr.sgml : 20181018
<ACCEPTANCE-DATETIME>20181018104554
ACCESSION NUMBER:		0000719220-18-000083
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20181018
ITEM INFORMATION:		Results of Operations and Financial Condition
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20181018
DATE AS OF CHANGE:		20181018

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			S&T BANCORP INC
		CENTRAL INDEX KEY:			0000719220
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				251434426
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12508
		FILM NUMBER:		181127790

	BUSINESS ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
		BUSINESS PHONE:		724-427-2347

	MAIL ADDRESS:	
		STREET 1:		800 PHILADELPHIA STREET
		STREET 2:		PO BOX 190
		CITY:			INDIANA
		STATE:			PA
		ZIP:			15701
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>stba-2018930x8xk.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: stba-2018930x8xk.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>stba-2018930xex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: stba-2018930xex991.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>stba-2018930divxex992.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 3 - file: stba-2018930divxex992.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>earn_image1a10.jpg
<TEXT>
Document 4 - file: earn_image1a10.jpg

</DOCUMENT>
</SEC-DOCUMENT>