<SEC-DOCUMENT>0001410368-25-036150.txt : 20251212
<SEC-HEADER>0001410368-25-036150.hdr.sgml : 20251212
<ACCEPTANCE-DATETIME>20251212164744
ACCESSION NUMBER:		0001410368-25-036150
CONFORMED SUBMISSION TYPE:	N-CEN
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20250930
FILED AS OF DATE:		20251212
DATE AS OF CHANGE:		20251212
EFFECTIVENESS DATE:		20251212

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Eaton Vance Municipal Bond Fund
		CENTRAL INDEX KEY:			0001176984
		ORGANIZATION NAME:           	
		EIN:				000000000
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		N-CEN
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-21142
		FILM NUMBER:		251568788

	BUSINESS ADDRESS:	
		STREET 1:		ONE POST OFFICE SQUARE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109
		BUSINESS PHONE:		6174828260

	MAIL ADDRESS:	
		STREET 1:		ONE POST OFFICE SQUARE
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EATON VANCE MUNICIPAL BOND FUND
		DATE OF NAME CHANGE:	20100202

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	EATON VANCE INSURED MUNICIPAL BOND FUND
		DATE OF NAME CHANGE:	20020702
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>594303324.06769230</mnthlyAvgNetAssets>
      </managementInvestmentQuestion>
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    <closedEndManagementInvestment>
      <securityRelatedItems>
        <securityRelatedItem>
          <description>Common stock</description>
          <securityClassTitle>EATON VANCE MUNICIPAL BOND FUND</securityClassTitle>
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<DOCUMENT>
<TYPE>INTERNAL CONTROL RPT
<SEQUENCE>2
<FILENAME>NCEN_811-21142_79848284_0925.htm
<TEXT>

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<a name="page_1"></a><a name="_bclPageBorder1"></a><DIV STYLE="PADDING-RIGHT: 0%; PADDING-LEFT: 0%">
<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:2.8pt;text-align:justify;text-justify:inter-ideograph;"><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">REPORT</font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;"> </font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:.05pt;line-height:normal;">OF</font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.15pt;line-height:normal;"> </font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">INDEPENDENT</font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;"> </font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">REGISTERED PUBLIC ACCOUNTING</font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;"> </font></b><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">FIRM</font></b></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.35pt;text-align:justify;text-justify:inter-ideograph;"><b><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></b></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:4.5pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">To the Trustees and Shareholders of Eaton Vance
Municipal Bond Fund, Eaton Vance California Municipal Bond Fund, and Eaton
Vance New York Municipal Bond Fund:</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.25pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.75pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">In planning and performing our audits of the financial
statements of Eaton Vance Municipal Bond Fund, Eaton Vance California Municipal
Bond Fund, and Eaton Vance New York Municipal Bond Fund (collectively, the
&#8220;Funds&#8221;) as of and for the year ended September 30, 2025, in accordance with
the standards of the Public Company Accounting Oversight Board (United States)
(PCAOB), we considered the Funds&#8217; internal control over financial reporting,
including controls over safeguarding securities, as a basis for designing our
auditing procedures for the purpose of expressing our opinion on the financial
statements and to comply with the requirements of Form N-CEN, but not for the
purpose of expressing an opinion on the effectiveness of the Funds&#8217; internal
control over financial reporting. Accordingly, we express no such opinion.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.1pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.7pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">The management of the Funds is responsible for
establishing and maintaining effective internal control over financial
reporting. In fulfilling this responsibility, estimates and judgments by
management are required to assess the expected benefits and related costs of
controls. A fund&#8217;s internal control over financial reporting is a process
designed to provide reasonable assurance regarding the reliability of financial
reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A fund&#8217;s internal
control over financial reporting includes those policies and procedures that
(1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets
of the fund; (2) provide reasonable assurance that transactions are recorded as
necessary to permit preparation of financial statements in accordance with
generally accepted accounting principles, and that receipts and expenditures of
the fund are being made only in accordance with authorizations of management
and trustees of the fund; and (3) provide reasonable assurance regarding
prevention or timely detection of unauthorized acquisition, use, or disposition
of a fund&#8217;s assets that could have a material effect on the financial
statements.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.25pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.9pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">Because of its inherent limitations, internal control
over financial reporting may not prevent or detect misstatements. Also,
projections of any evaluation of effectiveness to future periods are subject to
the risk that controls may become inadequate because of changes in conditions,
or that the degree of compliance with the policies or procedures may
deteriorate.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.1pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.85pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">A deficiency in internal control over financial
reporting exists when the design or operation of a control does not allow
management or employees, in the normal course of performing their assigned
functions, to prevent or detect misstatements on a timely basis. A material
weakness is a deficiency, or a combination of deficiencies, in internal control
over financial reporting, such that there is a reasonable possibility that a
material misstatement of the fund&#8217;s annual or interim financial statements will
not be prevented or detected on a timely basis.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.25pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.75pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">Our consideration of the Funds&#8217; internal control over
financial reporting was for the limited purpose described in the first
paragraph and would not necessarily disclose all deficiencies in internal
control that might be material weaknesses under standards established by the
PCAOB. However, we noted no deficiencies in the Funds&#8217; internal control over
financial reporting and its operation, including controls for safeguarding
securities, that we consider to be a material weakness, as defined above, as of
September 30, 2025.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.1pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:5.7pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">This report is intended solely for the information and
use of management and the Trustees of Eaton Vance Municipal Bond Fund, Eaton
Vance California Municipal Bond Fund, and Eaton Vance New York Municipal Bond
Fund and the Securities and Exchange Commission and is not intended to be and
should not be used by anyone other than these specified parties.</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:0in;margin-top:.25pt;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:328.55pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">/s/ Deloitte &amp; Touche LLP</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:328.55pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">&nbsp;</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:328.55pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">Boston,</font><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;"> </font><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">Massachusetts</font></p>

<p style="margin-bottom:0in;margin-left:0in;margin-right:328.55pt;margin-top:0in;text-align:justify;text-justify:inter-ideograph;"><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;letter-spacing:-.05pt;line-height:normal;">November </font><font face=arial,sans-serif lang=EN-US style="font-size:10.0pt;line-height:normal;">21, 2025</font></p>

<p style="margin-bottom:8.0pt;margin-left:0in;margin-right:0in;margin-top:0in;"><font face=Aptos,sans-serif lang=EN-US style="font-size:12.0pt;line-height:115%;">&nbsp;</font></p>




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