-----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,
 Pk+Sy96vqSA003n7Zh22kP92XQqv7y5II6rBSkM2Cy7k+g4EYCgaX7y1ngAWoMqI
 HOi1cLSzlHh8jqZezWTzTg==

<SEC-DOCUMENT>0001140361-10-047546.txt : 20101201
<SEC-HEADER>0001140361-10-047546.hdr.sgml : 20101201
<ACCEPTANCE-DATETIME>20101201100430
ACCESSION NUMBER:		0001140361-10-047546
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20101130
FILED AS OF DATE:		20101201
DATE AS OF CHANGE:		20101201

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NEUDECKER STEVEN
		CENTRAL INDEX KEY:			0001501534

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19300
		FILM NUMBER:		101223732

	MAIL ADDRESS:	
		STREET 1:		C/O NORTHERN STATES FINANCIAL CORP
		STREET 2:		1601 NORTH LEWIS AVENUE
		CITY:			WAUKEGAN
		STATE:			IL
		ZIP:			60085

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NORTHERN STATES FINANCIAL CORP /DE/
		CENTRAL INDEX KEY:			0000744485
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				363449727
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1601 N LEWIS AVE
		CITY:			WAUKEGAN
		STATE:			IL
		ZIP:			60085
		BUSINESS PHONE:		8472446000

	MAIL ADDRESS:	
		STREET 1:		1601 NORTH LEWIS AVE
		CITY:			WAUKEGAN
		STATE:			IL
		ZIP:			60085
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-11-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000744485</issuerCik>
        <issuerName>NORTHERN STATES FINANCIAL CORP /DE/</issuerName>
        <issuerTradingSymbol>NSFC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001501534</rptOwnerCik>
            <rptOwnerName>NEUDECKER STEVEN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NORTHERN STATES FINANCIAL CORPORATIO</rptOwnerStreet1>
            <rptOwnerStreet2>1601 N LEWIS AVE.</rptOwnerStreet2>
            <rptOwnerCity>WAUKEGAN</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60085</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>NSFC stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-11-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>194</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.40</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Steven Neudecker</signatureName>
        <signatureDate>2010-12-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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