-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001209191-07-064941.txt : 20071119
<SEC-HEADER>0001209191-07-064941.hdr.sgml : 20071119
<ACCEPTANCE-DATETIME>20071119141546
ACCESSION NUMBER:		0001209191-07-064941
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071116
FILED AS OF DATE:		20071119
DATE AS OF CHANGE:		20071119

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEACOAST BANKING CORP OF FLORIDA
		CENTRAL INDEX KEY:			0000730708
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				592260678
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		815 COLORADO AVE
		STREET 2:		P O BOX 9012
		CITY:			STUART
		STATE:			FL
		ZIP:			34994
		BUSINESS PHONE:		5612874000

	MAIL ADDRESS:	
		STREET 1:		815 COLORADO AVE
		STREET 2:		P O BOX 9012
		CITY:			STUART
		STATE:			FL
		ZIP:			34995

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Strickland O Jean
		CENTRAL INDEX KEY:			0001328776

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-13660
		FILM NUMBER:		071255806

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		772-221-2793

	MAIL ADDRESS:	
		STREET 1:		P. O. BOX 9012
		STREET 2:		815 COLORADO AVENUE
		CITY:			STUART
		STATE:			FL
		ZIP:			34995
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-11-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000730708</issuerCik>
        <issuerName>SEACOAST BANKING CORP OF FLORIDA</issuerName>
        <issuerTradingSymbol>SBCF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001328776</rptOwnerCik>
            <rptOwnerName>Strickland O Jean</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SEACOAST BANKING CORP. OF FLORIDA</rptOwnerStreet1>
            <rptOwnerStreet2>P. O. BOX 9012</rptOwnerStreet2>
            <rptOwnerCity>STUART</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>34995</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Exec. VP &amp; Pres. of Subsidiary</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-11-16</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>146</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>12.90</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1210</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9235.2824</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18279</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3850</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F4"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4445</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F5"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock-settled Stock Appreciation Right</value>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.22</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2009-04-02</value>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-04-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>57385</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>57385</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock Right to Buy</value>
                <footnoteId id="F8"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.7879</value>
                <footnoteId id="F9"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>1999-07-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2008-06-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>18100</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Stock-settled Stock Appreciation Right</value>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>26.72</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2008-05-16</value>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-05-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>18200</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock Right to Buy</value>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>17.08</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-11-17</value>
                <footnoteId id="F10"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-11-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Common Stock Right to Buy</value>
                <footnoteId id="F6"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.40</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-12-21</value>
                <footnoteId id="F10"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-12-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Comomon Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">550 shares represent unvested shares in a time-based restricted stock award granted on 11/17/2003 under Seacoast's 2000 Long-Term Incentive Plan which shall vest in on 11/17/2008, subject to continued employment.  Another 660 shares represent unvested shares in a time-based restricted stock award granted under Seacoast's 2000 Long-Term Incentive Plan which shall vest, subject to continued employment, in 220-share increments on each anniversary of the date of grant (12/21/04).</footnote>
        <footnote id="F2">Represents shares held in the Company's Profit Sharing Plan as of September 30, 2007.</footnote>
        <footnote id="F3">Shares held jointly with spouse</footnote>
        <footnote id="F4">2,750 shares represent a performance based restricted stock award granted under Seacoast's 2000 Long-Term Incentive Plan which shall vest, subject to continued employment, over a 5-year performance period beginning January 1, 2004.  Another 1,100 shares represent a restricted stock award granted under Seacoast's 2000 Long-Term Incentive Plan which shall vest, subject to continued employment, over a 5-year performance period beginning January 1, 2005.  Both restricted stock awards vest based on achievement of EPS targets compared to the prior fiscal year: 38% EPS growth=25% vesting; 50% growth vesting; 75% EPS growth=75% vesting; 85% EPS growth=100% vesting.  Notwithstanding the above schedule, 100% of the performance based awards shall vest on the fifth anniversary of the grant date if the Company achieves an ROE of at least 16.5% for 3 consecutive quarters during the performance period, regardless of whether the EPS targets are met.</footnote>
        <footnote id="F5">Represent shares held in the Company's Employee Stock Purchase Plan as of December 31, 2006</footnote>
        <footnote id="F6">Granted pursuant to Seacoast Banking Corporation of Florida's 2000 Long-Term Incentive Plan.</footnote>
        <footnote id="F7">Vest over five years in 25% increments beginning on the second anniversary of the date of grant (the date indicated) and each of the following three anniversaires thereafter, subject to continued employment.</footnote>
        <footnote id="F8">Granted pursuant to Seacoast Banking Corporation of Florida's 1996 Long-Term Incentive Plan.</footnote>
        <footnote id="F9">The Form 4 filing software only allows for numbers to be expressed up to four decimal places.  The actual price of the stock option is $8.787879.</footnote>
        <footnote id="F10">Vests over 5 years at the rate of 20% on the first anniversary of the date of grant and then at the rate of 20% on each of the following four anniversaries thereafter, subject to continued employment.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Sharon Mehl as Power of Attorney for O. Jean Strickland</signatureName>
        <signatureDate>2007-11-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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