    <SEC-DOCUMENT>0001025835-18-000123-index.html : 20181211
    <SEC-HEADER>0001025835-18-000123.hdr.sgml : 20181211
    <ACCEPTANCE-DATETIME>20181211172956
    ACCESSION NUMBER:		0001025835-18-000123
    CONFORMED SUBMISSION TYPE:	S-4
    PUBLIC DOCUMENT COUNT:		11
    FILED AS OF DATE:		20181211
    DATE AS OF CHANGE:		20181211

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			ENTERPRISE FINANCIAL SERVICES CORP
    		CENTRAL INDEX KEY:			0001025835
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		IRS NUMBER:				431706259
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		S-4
    		SEC ACT:		1933 Act
    		SEC FILE NUMBER:	333-228751
    		FILM NUMBER:		181229578

    	BUSINESS ADDRESS:
    		STREET 1:		150 NORTH MERAMEC
    		STREET 2:		150 NORTH MERAMEC
    		CITY:			CLAYTON
    		STATE:			MO
    		ZIP:			63105
    		BUSINESS PHONE:		3147255500

    	MAIL ADDRESS:
    		STREET 1:		150 NORTH MERAMEC
    		STREET 2:		150 NORTH MERAMEC
    		CITY:			CLAYTON
    		STATE:			MO
    		ZIP:			63105

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	ENTERBANK HOLDINGS INC
    		DATE OF NAME CHANGE:	19961024
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>S-4
    <SEQUENCE>1
    <FILENAME>a12-2018sx4.htm
    <DESCRIPTION>S-4
    <TEXT>
    Document 1 - file: a12-2018sx4.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-5.1
    <SEQUENCE>2
    <FILENAME>ex51hollandknightllp.htm
    <DESCRIPTION>EXHIBIT 5.1
    <TEXT>
    Document 2 - file: ex51hollandknightllp.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-8.1
    <SEQUENCE>3
    <FILENAME>ex81taxopinionofhollandkni.htm
    <DESCRIPTION>EXHIBIT 8.1
    <TEXT>
    Document 3 - file: ex81taxopinionofhollandkni.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-8.2
    <SEQUENCE>4
    <FILENAME>ex82taxopinionofhuntonandr.htm
    <DESCRIPTION>EXHIBIT 8.2
    <TEXT>
    Document 4 - file: ex82taxopinionofhuntonandr.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-23.1
    <SEQUENCE>5
    <FILENAME>ex231consentofdeloittetouc.htm
    <DESCRIPTION>EXHIBIT 23.1
    <TEXT>
    Document 5 - file: ex231consentofdeloittetouc.htm

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    <DOCUMENT>
    <TYPE>EX-23.2
    <SEQUENCE>6
    <FILENAME>ex232consentofcrowe.htm
    <DESCRIPTION>EXHIBIT 23.2
    <TEXT>
    Document 6 - file: ex232consentofcrowe.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>7
    <FILENAME>ex991consentofkbw.htm
    <DESCRIPTION>EXHIBIT 99.1
    <TEXT>
    Document 7 - file: ex991consentofkbw.htm

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>hak.jpg
    <TEXT>
    Document 8 - file: hak.jpg

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    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>hklogoa01.jpg
    <TEXT>
    Document 9 - file: hklogoa01.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>kbw.jpg
    <TEXT>
    Document 10 - file: kbw.jpg

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    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>kbwsignoff.jpg
    <TEXT>
    Document 11 - file: kbwsignoff.jpg

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