<SEC-DOCUMENT>0000860748-20-000045.txt : 20200227
<SEC-HEADER>0000860748-20-000045.hdr.sgml : 20200227
<ACCEPTANCE-DATETIME>20200227175739
ACCESSION NUMBER:		0000860748-20-000045
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200225
FILED AS OF DATE:		20200227
DATE AS OF CHANGE:		20200227

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Green Mark A.
		CENTRAL INDEX KEY:			0001676131

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-18298
		FILM NUMBER:		20664301

	MAIL ADDRESS:	
		STREET 1:		200 EAST RANDOLPH STREET
		STREET 2:		SUITE 3300
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			KEMPER Corp
		CENTRAL INDEX KEY:			0000860748
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				954255452
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 E. RANDOLPH ST.
		STREET 2:		SUITE 3300
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		3126614600

	MAIL ADDRESS:	
		STREET 1:		200 E. RANDOLPH ST.
		STREET 2:		SUITE 3300
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	UNITRIN INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
<TEXT>
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    <periodOfReport>2020-02-25</periodOfReport>

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        <issuerName>KEMPER Corp</issuerName>
        <issuerTradingSymbol>KMPR</issuerTradingSymbol>
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            <rptOwnerName>Green Mark A.</rptOwnerName>
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            <rptOwnerStreet1>200 EAST RANDOLPH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60601</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, Bus Dev &amp; Reinsurance</officerTitle>
            <otherText></otherText>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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                <transactionFormType>4</transactionFormType>
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                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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            <transactionAmounts>
                <transactionShares>
                    <value>13321</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>76.0015</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>33634</value>
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                <directOrIndirectOwnership>
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        </nonDerivativeTransaction>
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                <transactionPricePerShare>
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                    <value>A</value>
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                <transactionAcquiredDisposedCode>
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            <ownershipNature>
                <directOrIndirectOwnership>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
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    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>31.83</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-02-25</value>
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            <transactionCoding>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2026-06-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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                </underlyingSecurityShares>
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            <ownershipNature>
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                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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            <exerciseDate>
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            <expirationDate>
                <value>2026-06-15</value>
            </expirationDate>
            <underlyingSecurity>
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                <underlyingSecurityShares>
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                <transactionShares>
                    <value>17460</value>
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                <transactionPricePerShare>
                    <value>43.30</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <exerciseDate>
                <footnoteId id="F4"/>
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            <expirationDate>
                <value>2027-02-07</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>17460.0</value>
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                <sharesOwnedFollowingTransaction>
                    <value>5820</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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                <value>Employee Stock Option</value>
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                <value>60.0</value>
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                <value>2020-02-25</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionAmounts>
                <transactionShares>
                    <value>16800</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>60</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F5"/>
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            <expirationDate>
                <value>2028-02-06</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>16800.0</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8400</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold to pay for the exercise prices and/or taxes in connection with the transaction.</footnote>
        <footnote id="F2">Option shares vest in four equal consecutive annual installments beginning on 12/3/2016.</footnote>
        <footnote id="F3">Option shares vest in four equal consecutive annual installments beginning on 12/15/2016.</footnote>
        <footnote id="F4">Option shares vest in four equal consecutive annual installments beginning on 8/7/2017.</footnote>
        <footnote id="F5">Option shares vest in three equal consecutive annual installments beginning on 2/6/2019.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Nanette H. Hoff,  Attorney-in-Fact</signatureName>
        <signatureDate>2020-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
