<SEC-DOCUMENT>0001752724-20-049344-index.html : 20200313
<SEC-HEADER>0001752724-20-049344.hdr.sgml : 20200313
<ACCEPTANCE-DATETIME>20200313165817
ACCESSION NUMBER:		0001752724-20-049344
CONFORMED SUBMISSION TYPE:	N-CEN
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20191231
FILED AS OF DATE:		20200313
DATE AS OF CHANGE:		20200313
EFFECTIVENESS DATE:		20200313

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BLACKROCK CORE BOND TRUST
		CENTRAL INDEX KEY:			0001160864
		IRS NUMBER:				522346891
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CEN
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-10543
		FILM NUMBER:		20713622

	BUSINESS ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
		BUSINESS PHONE:		888-825-2257

	MAIL ADDRESS:	
		STREET 1:		100 BELLEVUE PARKWAY
		STREET 2:		MUTUAL FUND DEPARTMENT
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19809
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CEN
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>ADVISORY CONTRACTS
<SEQUENCE>2
<FILENAME>NCEN_9981456223737105.htm
<TEXT>
Document 2 - file: NCEN_9981456223737105.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>3
<FILENAME>NCEN_8773787701573159.txt
<TEXT>
Document 3 - file: NCEN_8773787701573159.txt

</DOCUMENT>
<DOCUMENT>
<TYPE>ADVISORY CONTRACTS
<SEQUENCE>4
<FILENAME>NCEN_9981456128979474.htm
<TEXT>
Document 4 - file: NCEN_9981456128979474.htm

</DOCUMENT>
</SEC-DOCUMENT>