<SEC-DOCUMENT>0001127602-25-018751.txt : 20250703
<SEC-HEADER>0001127602-25-018751.hdr.sgml : 20250703
<ACCEPTANCE-DATETIME>20250703091323
ACCESSION NUMBER:		0001127602-25-018751
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250701
FILED AS OF DATE:		20250703
DATE AS OF CHANGE:		20250703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bague Hugo
		CENTRAL INDEX KEY:			0001514963
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13145
		FILM NUMBER:		251103907

	MAIL ADDRESS:	
		STREET 1:		200 E RANDOLPH DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			JONES LANG LASALLE INC
		CENTRAL INDEX KEY:			0001037976
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE AGENTS & MANAGERS (FOR OTHERS) [6531]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				364150422
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 E RANDOLPH DR
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601
		BUSINESS PHONE:		3127825800

	MAIL ADDRESS:	
		STREET 1:		C/O JONES LANG LASALLE INC
		STREET 2:		200 EAST RANDOLPH DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LASALLE PARTNERS INC
		DATE OF NAME CHANGE:	19970417
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-07-01</periodOfReport>

    <issuer>
        <issuerCik>0001037976</issuerCik>
        <issuerName>JONES LANG LASALLE INC</issuerName>
        <issuerTradingSymbol>JLL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001514963</rptOwnerCik>
            <rptOwnerName>Bague Hugo</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>RIED 20</rptOwnerStreet1>
            <rptOwnerStreet2>6430 SCHWYZ</rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState>V8</rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription>SWITZERLAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-07-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>171</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>27444</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares elected to be received in lieu of annual cash retainer payable quarterly in advance for the third quarter of fiscal year 2024, and in lieu of annual committee cash retainers for Committee Chair or Member paid annually in the third quarter, in accordance with prior election under the Non-Executive Director Compensation program. The receipt of these shares has been deferred pursuant to the Jones Lang LaSalle Inc. Deferred Compensation Plan</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Alan K. Tse, attorney-in-fact for Hugo Bague</signatureName>
        <signatureDate>2025-07-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
