<?xml version="1.0"?>

<ownershipDocument>

    <documentType>4</documentType>

    <periodOfReport>2003-05-28</periodOfReport>


    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000109380</issuerCik>
        <issuerName>ZIONS BANCORPORATION /UT/</issuerName>
        <issuerTradingSymbol>ZION</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001085551</rptOwnerCik>
            <rptOwnerName>SIMMONS L E</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeSecurity>
        <securityTitle>
            <value>Phantom Stock</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>0</value>
            <footnoteId id="F1"/>
        </conversionOrExercisePrice>
        <transactionDate>
            <value>2003-05-28</value>
        </transactionDate>
        <transactionCoding>
            <transactionFormType>5</transactionFormType>
            <transactionCode>A</transactionCode>
            <equitySwapInvolved>0</equitySwapInvolved>
        </transactionCoding>
        <transactionTimeliness>
            <value>E</value>
        </transactionTimeliness>
        <transactionAmounts>
            <transactionShares>
                <value>33.6609</value>
            </transactionShares>
            <transactionValue>
                <value>49.57</value>
            </transactionValue>
            <transactionAcquiredDisposedCode>
                <value>A</value>
            </transactionAcquiredDisposedCode>
        </transactionAmounts>
        <exerciseDate>
            <value>1988-08-08</value>
            <footnoteId id="F2"/>
        </exerciseDate>
        <expirationDate>
            <value>1988-08-08</value>
            <footnoteId id="F2"/>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>33.6609</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <postTransactionAmounts>
            <sharesOwnedFollowingTransaction>
                <value>7979.23</value>
                <footnoteId id="F3"/>
            </sharesOwnedFollowingTransaction>
        </postTransactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">Each phantom stock unit represents one share of the company's common stock.</footnote>
        <footnote id="F2">Phantom stock units are paid out as cash upon the earlier of resignation, retirement or death.</footnote>
        <footnote id="F3">Mr. Simmons also holds 32,000 shares under the Title of Derivative Security &quot;Stock Option (right to buy)&quot;.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Clark B. Hinckley as Attorney In Fact for Laurence E. Simmons</signatureName>
        <signatureDate>2003-06-19</signatureDate>
    </ownerSignature>

</ownershipDocument>
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4
2003-05-28
0
0000109380
ZIONS BANCORPORATION /UT/
ZION
0001085551
SIMMONS L E
1
0
0
0
Phantom Stock
0
2003-05-28
5
A
0
E
33.6609
49.57
A
1988-08-08
1988-08-08
Common Stock
33.6609
7979.23
D
Each phantom stock unit represents one share of the company's common stock.
Phantom stock units are paid out as cash upon the earlier of resignation, retirement or death.
Mr. Simmons also holds 32,000 shares under the Title of Derivative Security "Stock Option (right to buy)".
/s/Clark B. Hinckley as Attorney In Fact for Laurence E. Simmons
2003-06-19