<SEC-DOCUMENT>0001209191-21-038864.txt : 20210608
<SEC-HEADER>0001209191-21-038864.hdr.sgml : 20210608
<ACCEPTANCE-DATETIME>20210608160214
ACCESSION NUMBER:		0001209191-21-038864
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210607
FILED AS OF DATE:		20210608
DATE AS OF CHANGE:		20210608

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Flinton David
		CENTRAL INDEX KEY:			0001654800

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35229
		FILM NUMBER:		211002165

	MAIL ADDRESS:	
		STREET 1:		C/O XYLEM INC.
		STREET 2:		1 INTERNATIONAL DRIVE
		CITY:			RYE BROOK
		STATE:			NY
		ZIP:			10573

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Xylem Inc.
		CENTRAL INDEX KEY:			0001524472
		STANDARD INDUSTRIAL CLASSIFICATION:	PUMPS & PUMPING EQUIPMENT [3561]
		IRS NUMBER:				452080495
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 INTERNATIONAL DRIVE
		CITY:			RYE BROOK
		STATE:			NY
		ZIP:			10573
		BUSINESS PHONE:		914-323-5700

	MAIL ADDRESS:	
		STREET 1:		1 INTERNATIONAL DRIVE
		CITY:			RYE BROOK
		STATE:			NY
		ZIP:			10573

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ITT WCO, Inc.
		DATE OF NAME CHANGE:	20110628
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-06-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001524472</issuerCik>
        <issuerName>Xylem Inc.</issuerName>
        <issuerTradingSymbol>XYL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001654800</rptOwnerCik>
            <rptOwnerName>Flinton David</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O XYLEM INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1 INTERNATIONAL DRIVE</rptOwnerStreet2>
            <rptOwnerCity>RYE BROOK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10573</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Senior Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-06-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>13966</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>118.7822</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>12333</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The sale was made pursuant to a 10b5-1 plan adopted by the reporting person on May 7, 2021.</footnote>
        <footnote id="F2">This price represents the weighted average price per share of common stock (each, a &quot;Share&quot;) of Xylem Inc. (the &quot;Issuer&quot;). 13,953 Shares were executed at a range of prices from $118.38 to $119.26. 13 Shares were executed at a price of $119.38.  The Reporting Person undertakes to provide, upon request by the Securities and Exchange Commission staff, the Issuer or a security holder of the Issuer, full information regarding the number of Shares sold at each price.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kimberly Rehm, by power of attorney for David Flinton</signatureName>
        <signatureDate>2021-06-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
