REPORT OF INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM

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:

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 "Funds") as of and for the year ended
September 30, 2020, in accordance with the standards of the
Public Company Accounting Oversight Board (United States)
(PCAOB), we considered the Funds' 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' internal
control over financial reporting. Accordingly, we express no such
opinion.

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'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'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's assets that could have a material effect on the financial
statements.

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.

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's annual or interim financial
statements will not be prevented or detected on a timely basis.

Our consideration of the Funds' 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' 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, 2020.

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.


/s/ Deloitte & Touche LLP

Boston, Massachusetts
November 19, 2020