<SEC-DOCUMENT>0000719220-19-000075-index.html : 20190917
<SEC-HEADER>0000719220-19-000075.hdr.sgml : 20190917
<ACCEPTANCE-DATETIME>20190917170039
ACCESSION NUMBER:		0000719220-19-000075
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		16
CONFORMED PERIOD OF REPORT:	20190917
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190917
DATE AS OF CHANGE:		20190917

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:		191097623

	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>
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Document 1 - file: form8kdated91719.htm

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<DOCUMENT>
<TYPE>EX-99.1
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<FILENAME>pressrelease91719.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: pressrelease91719.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.SCH
<SEQUENCE>3
<FILENAME>stba-20190917.xsd
<DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
<TEXT>
Document 3 - file: stba-20190917.xsd

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-101.CAL
<SEQUENCE>4
<FILENAME>stba-20190917_cal.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
<TEXT>
Document 4 - file: stba-20190917_cal.xml

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<TYPE>EX-101.DEF
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<FILENAME>stba-20190917_def.xml
<DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
<TEXT>
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<TYPE>EX-101.LAB
<SEQUENCE>6
<FILENAME>stba-20190917_lab.xml
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<TEXT>
Document 6 - file: stba-20190917_lab.xml

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<TYPE>EX-101.PRE
<SEQUENCE>7
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<TEXT>
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<TYPE>JSON
<SEQUENCE>9
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<TEXT>
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<TYPE>XML
<SEQUENCE>10
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<TEXT>
Document 10 - file: R1.htm

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Document 11 - RAW XML: FilingSummary.xml

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<TYPE>XML
<SEQUENCE>13
<FILENAME>report.css
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<DOCUMENT>
<TYPE>ZIP
<SEQUENCE>14
<FILENAME>0000719220-19-000075-xbrl.zip
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<TEXT>
Document 14 - file: 0000719220-19-000075-xbrl.zip

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<DOCUMENT>
<TYPE>EXCEL
<SEQUENCE>15
<FILENAME>Financial_Report.xlsx
<DESCRIPTION>IDEA: XBRL DOCUMENT
<TEXT>
Document 15 - file: Financial_Report.xlsx

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<DOCUMENT>
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