<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001748908</cik>
        <entityName>Illinois Avenue Partners LLC</entityName>
        <issuerAddress>
            <street1>1444 N COCKRELL HILL RD</street1>
            <street2>SUITE 101</street2>
            <city>DALLAS</city>
            <stateOrCountry>TX</stateOrCountry>
            <stateOrCountryDescription>TEXAS</stateOrCountryDescription>
            <zipCode>75211</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>8568162906</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Limited Liability Company</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Michael</firstName>
                <middleName>T</middleName>
                <lastName>Winton</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>612 Warwick Road</street1>
                <city>Haddonfield</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08033</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <middleName>G</middleName>
                <lastName>Gifford</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>662 Conestoga Road</street1>
                <city>Villanova</city>
                <stateOrCountry>PA</stateOrCountry>
                <stateOrCountryDescription>PENNSYLVANIA</stateOrCountryDescription>
                <zipCode>19085</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>R</middleName>
                <lastName>Shain</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>24 Buckingham Ridge Road</street1>
                <city>Wilton</city>
                <stateOrCountry>CT</stateOrCountry>
                <stateOrCountryDescription>CONNECTICUT</stateOrCountryDescription>
                <zipCode>06897</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>David</firstName>
                <middleName>C</middleName>
                <lastName>Humphreys</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>211 S Main Street</street1>
                <street2>PO Box 1090</street2>
                <city>Joplin</city>
                <stateOrCountry>MO</stateOrCountry>
                <stateOrCountryDescription>MISSOURI</stateOrCountryDescription>
                <zipCode>64802</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Timothy</firstName>
                <middleName>R</middleName>
                <lastName>Whelan</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>211 S Main Street</street1>
                <street2>PO Box 1090</street2>
                <city>Joplin</city>
                <stateOrCountry>MO</stateOrCountry>
                <stateOrCountryDescription>MISSOURI</stateOrCountryDescription>
                <zipCode>64802</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>John</firstName>
                <middleName>P</middleName>
                <lastName>Oswald</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>211 Main Street</street1>
                <street2>PO Box 1090</street2>
                <city>Joplin</city>
                <stateOrCountry>MO</stateOrCountry>
                <stateOrCountryDescription>MISSOURI</stateOrCountryDescription>
                <zipCode>64802</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jeremy</firstName>
                <lastName>Greenberg</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>211 Main Street</street1>
                <street2>PO Box 1090</street2>
                <city>Joplin</city>
                <stateOrCountry>MO</stateOrCountry>
                <stateOrCountryDescription>MISSOURI</stateOrCountryDescription>
                <zipCode>64802</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Manufacturing</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>$25,000,001 - $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2024-12-31</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>280</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>20000000</totalOfferingAmount>
            <totalAmountSold>13914382</totalAmountSold>
            <totalRemaining>6085618</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Illinois Avenue Partners LLC</issuerName>
                <signatureName>Michael T. Winton</signatureName>
                <nameOfSigner>Michael T. Winton</nameOfSigner>
                <signatureTitle>Chief Financial Officer</signatureTitle>
                <signatureDate>2025-01-15</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
