-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IwG7lkqaXOv5iqqUWq2PTOCp69912SFqQFbXI+Uv8Q3yZqMVUYrGaXjO7sKYCoNm
 VHleEg2yXyp00WTuaSEVKQ==

<SEC-DOCUMENT>0001209191-10-029282.txt : 20100520
<SEC-HEADER>0001209191-10-029282.hdr.sgml : 20100520
<ACCEPTANCE-DATETIME>20100520153917
ACCESSION NUMBER:		0001209191-10-029282
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100519
FILED AS OF DATE:		20100520
DATE AS OF CHANGE:		20100520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mahon Casey D.
		CENTRAL INDEX KEY:			0001450675

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34257
		FILM NUMBER:		10847864

	MAIL ADDRESS:	
		STREET 1:		227 FERSON AVENUE
		CITY:			IOWA CITY
		STATE:			IA
		ZIP:			52246

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			UNITED FIRE & CASUALTY CO
		CENTRAL INDEX KEY:			0000101199
		STANDARD INDUSTRIAL CLASSIFICATION:	FIRE, MARINE & CASUALTY INSURANCE [6331]
		IRS NUMBER:				420644327
		STATE OF INCORPORATION:			IA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		118 SECOND AVE SE
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52407
		BUSINESS PHONE:		3193995700

	MAIL ADDRESS:	
		STREET 1:		P O BOX 73909
		CITY:			CEDAR RAPIDS
		STATE:			IA
		ZIP:			52407
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-05-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000101199</issuerCik>
        <issuerName>UNITED FIRE &amp; CASUALTY CO</issuerName>
        <issuerTradingSymbol>UFCS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001450675</rptOwnerCik>
            <rptOwnerName>Mahon Casey D.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>118 SECOND AVENUE SE</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 73909</rptOwnerStreet2>
            <rptOwnerCity>CEDAR RAPIDS</rptOwnerCity>
            <rptOwnerState>IA</rptOwnerState>
            <rptOwnerZipCode>52407-3909</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>22.46</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-05-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-05-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15933</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">3,000 options become exercisable in five equal installments of 600 option shares each on 05/19/2011, 05/19/2012, 05/19/2013, 05/19/2014 and 05/19/2015.</footnote>
        <footnote id="F2">The total number of derivative securites beneficially held following the reported transaction includes: 8,666 stock options currently exercisable; 400 stock options vesting on 02/17/2011; 267 stock options vesting on 05/17/2011; 1,200 stock options vesting in three equal installments of 400 option shares each on 11/16/2010, 11/16/2011, and 11/16/2012; 2,400 stock options vesting in four equal installments of 600 option shares each on 05/21/2010, 05/21/2011, 05/21/2012, and 05/21/2013; and 3,000 stock options vesting in five equal installments of 600 option shares each on 05/19/2011, 05/19/2012, 05/19/2013, 05/19/2014 and 05/19/2015.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Casey D. Mahon by Dianne M. Lyons, Attorney-in-Fact</signatureName>
        <signatureDate>2010-05-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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