<SEC-DOCUMENT>0001209191-16-093695.txt : 20160127
<SEC-HEADER>0001209191-16-093695.hdr.sgml : 20160127
<ACCEPTANCE-DATETIME>20160127080147
ACCESSION NUMBER:		0001209191-16-093695
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20160122
FILED AS OF DATE:		20160127
DATE AS OF CHANGE:		20160127

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Delaware Investments National Municipal Income Fund
		CENTRAL INDEX KEY:			0000895574
		STANDARD INDUSTRIAL CLASSIFICATION:	UNKNOWN SIC - 0000 [0000]
		IRS NUMBER:				411737161
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0330

	BUSINESS ADDRESS:	
		STREET 1:		ONE COMMERCE SQUARE
		STREET 2:		2005 MARKET STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103
		BUSINESS PHONE:		18005231918

	MAIL ADDRESS:	
		STREET 1:		ONE COMMERCE SQUARE
		STREET 2:		2005 MARKET STREET
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19103

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DELAWARE INVESTMENTS FLORIDA INSURED MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	20020327

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VOYAGEUR FLORIDA INSURED MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	19930519

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	VOYAGEUR FLORIDA INSURD MUNICIPAL INCOME FUND
		DATE OF NAME CHANGE:	19930122

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WELLS FARGO BANK N A
		CENTRAL INDEX KEY:			0000740906
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07410
		FILM NUMBER:		161363022

	BUSINESS ADDRESS:	
		STREET 1:		101 NORTH PHILLIPS STREET
		CITY:			SIOUX FALLS
		STATE:			SD
		ZIP:			57104
		BUSINESS PHONE:		4152225300

	MAIL ADDRESS:	
		STREET 1:		101 NORTH PHILLIPS STREET
		CITY:			SIOUX FALLS
		STATE:			SD
		ZIP:			57104
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-01-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000895574</issuerCik>
        <issuerName>Delaware Investments National Municipal Income Fund</issuerName>
        <issuerTradingSymbol>VFL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000740906</rptOwnerCik>
            <rptOwnerName>WELLS FARGO BANK N A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>101 NORTH PHILLIPS STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SIOUX FALLS</rptOwnerCity>
            <rptOwnerState>SD</rptOwnerState>
            <rptOwnerZipCode>57104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Variable Rate Muni Fund Term Preferred Shares Series 2017</value>
            </securityTitle>
            <transactionDate>
                <value>2016-01-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Variable Rate Muni Fund Term Preferred Shares Series 2021</value>
            </securityTitle>
            <transactionDate>
                <value>2016-01-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>300</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>300</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Reporting person refinanced its existing shares of Variable Rate Muni Fund Term Preferred Share Series 2017 (Existing Shares) of the issuer by redemption of the Existing Shares and the issuance of newly issued shares of Variable Rate Muni Fund Term Preferred Shares Series 2021 (New Shares) of the issuer  pursuant to a Purchase Agreement dated January 22, 2016. The New Shares were issued on January 22, 2016. The Existing Shares will be redeemed on or about February 1, 2016.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Adam Joseph, Managing Director</signatureName>
        <signatureDate>2016-01-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
