Western Asset Municipal High Income Fund Inc. Portfolio Composition as of December 31, 2012

  Western Asset Municipal High Income Fund Inc. Portfolio Composition as of
  December 31, 2012

Business Wire

NEW YORK -- February 4, 2013

Western Asset Municipal High Income Fund Inc. (NYSE: MHF) announces its
portfolio composition as of December 31, 2012.

Investment Objective: The Fund seeks high current income exempt from Federal
income taxes.

Portfolio Composition*:

Asset Allocation                                                   
Municipals                          99.4%
Variable Rate Demand Notes          0.5%
Cash & Cash Equivalents             0.1%
Top Ten Municipal Sectors
Industrial Revenue                  28.9%
Health Care                         18.2%
Transportation                      10.4%
Lease Backed                        7.6%
Power                               7.6%
Education                           7.0%
Special Tax Obligation              6.0%
Pre refunded / Escrowed to          4.6%
Water & Sewer                       4.4%
Other                               2.7%
Credit Quality Allocation^**
AAA                                 0.6%
AA                                  2.9%
A                                   32.6%
BBB                                 36.8%
BB                                  4.1%
B                                   2.9%
D                                   0.6%
Not Rated                           19.6%
Call Statistics
Not Callable                        7.9%
2013                                18.2%
2014                                3.2%
2015                                3.6%
2016                                8.6%
2017                                7.3%
2018                                5.5%
2019                                9.9%
2020                                15.4%
2021                                12.2%
2022                                8.1%
Average Life (years)                12.4
Effective Duration (years)          7.1
Average Coupon (%)                  6.1
Subject to AMT (%)                  15.8
Portfolio Statistics:
Inception Date                      November 28, 1988
Inception Price                     $10.00
Total Assets                        $176,522,879
Market Price                        $7.92
NAV                                 $8.17
(Daily NAV is available on market quotation systems using the symbol XMHFX.)
Distribution Rate                   $0.0330 per share
Frequency                           Monthly (Declared quarterly, paid monthly)

*   Portfolio holdings and weightings are historical and are presented here
     for informational purposes only. They are subject to change at any time.
     Credit quality is a measure of a bond issuer's ability to repay interest
     and principal in a timely manner. The credit ratings shown are based on
     each portfolio security's rating as provided by Standard and Poor's,
     Moody's Investors Service and/or Fitch Ratings, Ltd. and typically range
     from AAA (highest) to D (lowest). For this purpose, if two or more of the
**   agencies have assigned differing ratings to a security, the highest
     rating is used. Securities that are unrated by all three agencies are
     reflected as such. The credit quality of the investments in the Fund's
     portfolio does not apply to the stability or safety of the Fund. These
     ratings are updated monthly and may change over time. Please note, the
     Fund itself has not been rated by an independent rating agency.

Western Asset Municipal High Income Fund Inc., a diversified closed-end
investment management company, is advised by Legg Mason Partners Fund Advisor,
LLC, a wholly owned subsidiary of Legg Mason, Inc., and is sub-advised by
Western Asset Management Company, an affiliate of the advisor.

An investment in the Fund involves risk, including loss of principal.
Investment return and the value of shares will fluctuate. Fixed income
securities are subject to credit risk, inflation risk, call risk, and interest
rate risk. As interest rates rise, bond prices fall, reducing the value of the
Fund's share price. Certain investors may be subject to the alternative
minimum tax (AMT). State and local taxes may apply. The Fund may invest in
derivative instruments. Derivative instruments can be illiquid, may
disproportionately increase losses, and have a potentially large impact on
Fund performance.

Data and commentary provided in this press release are for informational
purposes only. Legg Mason and its affiliates do not engage in selling shares
of the Fund.

For more information, please call Fund Investor Services at 888-777-0102 or
consult the Fund’s web site at www.leggmason.com/cef.



Western Asset Municipal High Income Fund Inc.
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