<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-04-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001712189</issuerCik>
        <issuerName>Target Hospitality Corp.</issuerName>
        <issuerTradingSymbol>TH</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001765471</rptOwnerCik>
            <rptOwnerName>Lewis Heidi Diane</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2170 BUCKTHORNE PLACE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 440</rptOwnerStreet2>
            <rptOwnerCity>THE WOODLANDS</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77380</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, General Counsel &amp; Sec</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-04-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>23742</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>23742</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>54390</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a contingent right to receive upon vesting one share of common stock of the Issuer, par value $0.0001 per share (&quot;Common Stock&quot;), or its cash equivalent.</footnote>
        <footnote id="F2">On April 1, 2020, the Compensation Committee approved the salary reduction equity award program (the &quot;Salary Program&quot;).  On April 1, 2020 as contemplated by the Salary Program, the Reporting Person was granted 23,742 RSUs pursuant to the Target Hospitality Corp. 2019 Incentive Award Plan (the &quot;Plan&quot;).  The RSUs will ratably vest on the first of every month (with the exception of April, which will be April 15) through December 2020.</footnote>
        <footnote id="F3">Total includes, in addition of the grant of 23,742 RSUs on April 1, 2020, 9,234 restricted stock units granted on May 21, 2019 which vest in four equal annual installments on each of the first four anniversaries of the grant date beginning on May 21, 2020, subject to the terms and conditions of the Plan and the Restricted Stock Unit Award Agreement and 21,414 RSUs granted on March 4, 2020 which vest in four equal annual installments on each of the first four anniversaries of the grant date beginning on March 4, 2021, subject to the terms of the Plan and RSU Agreement.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Heidi D. Lewis</signatureName>
        <signatureDate>2020-04-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
