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UNITEDSTATES
SECURITIESANDEXCHANGECOMMISSION
Washington,D.C.20549

FORM N-Q

QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED
MANAGEMENT INVESTMENT COMPANY

Investment Company Act file number 811-07083

Name of Fund: BlackRock MuniYield Arizona Fund, Inc. (MZA)

Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809

Name and address of agent for service: Donald C. Burke, Chief Executive Officer, BlackRock
MuniYield Arizona Fund, Inc., 800 Scudders Mill Road, Plainsboro, NJ, 08536. Mailing
address: P.O. Box 9011, Princeton, NJ, 08543-9011

Registrant’s telephone number, including area code: (800) 882-0052, Option 4

Date of fiscal year end: 07/31/2009

Date of reporting period: 04/30/2009

Item 1 – Schedule of Investments

BlackRock MuniYield Arizona Fund, Inc.       
Schedule of Investments April 30, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
       Par   
  Municipal Bonds    (000)  Value 
Arizona - 141.4%         
Corporate - 1.4%  Yavapai County, Arizona, IDA, Solid Waste Disposal     
Revenue Bonds (Waste Management Inc. Project), AMT,
  Series A-1, 4.90%, 3/01/28    $ 1,000  $ 782,000 
County/City/Special  Downtown Phoenix Hotel Corporation, Arizona, Revenue     
District/School District - 47.1%  Bonds, Senior Series A, 5%, 7/01/36 (a)    1,500  985,080 
Downtown Phoenix Hotel Corporation, Arizona, Revenue
  Bonds, Sub-Series B, 5%, 7/01/36 (a)(b)    965  812,588 
Gila County, Arizona, Unified School District Number 10
  (Payson), GO (School Improvement Project of 2006),     
  Series A, 1%, 7/01/27 (c)    1,000  964,430 
  Gilbert, Arizona, Public Facilities Municipal Property     
  Corporation Revenue Bonds, 5.50%, 7/01/27  2,000  2,062,720 
Gladden Farms Community Facilities District, Arizona,
  GO, 5.50%, 7/15/31    750  443,092 
Greater Arizona Development Authority, Infrastructure
Revenue Bonds (Santa Cruz County Jail), Series 2, 5.25%,
  8/01/31    1,000  998,610 
Greater Arizona Development Authority, Infrastructure
  Revenue Bonds, Series B, 5%, 8/01/30 (b)  1,700  1,677,968 
Maricopa County, Arizona, School District Number 3, GO,
  Refunding (Tempe Elementary), 7.50%, 7/01/10 (a)(b)  500  533,410 
Maricopa County, Arizona, School District Number 11, GO
  (Peoria Unified), Second Series, 5%, 7/01/25 (a)(b)  630  651,565 
  Maricopa County, Arizona, School District Number 89,     
School Improvement, GO (Dysart Unified), Series C, 6%,
  7/01/28    1,000  1,067,450 
  Maricopa County, Arizona, School District Number 90,     
  School Improvement, GO (Saddle Mountain Unified),     
  Series A, 5%, 7/01/14    150  155,184 
Mohave County, Arizona, Unified School District Number
  20 (Kingman), School Improvement Bonds (Project of     
  2006), Series C, 5%, 7/01/26 (d)    1,000  1,023,970 
Phoenix, Arizona, Civic Improvement Corporation, Excise
Tax Revenue Bonds (Civic Plaza Expansion Project), Sub-
  Series A, 5%, 7/01/35 (a)(b)    3,325  3,333,512 
Pima County, Arizona, Unified School District Number 1
  (Tucson), GO, Refunding, 7.50%, 7/01/09 (a)(b)  2,050  2,070,295 
  Pinal County, Arizona, COP, 5%, 12/01/26  1,250  1,139,312 
  Pinal County, Arizona, COP, 5%, 12/01/29  1,250  1,104,637 
Queen Creek Improvement District Number 001, Arizona,
  Special Assessment Bonds, 5%, 1/01/32    2,000  1,517,080 
Portfolio Abbreviations         

To simplify the listings of portfolio holdings in the Schedule of Investments, the names and descriptions of many of the
securities have been abbreviated according to the list below.

AMT  Alternative Minimum Tax (subject to)    IDA  Industrial Development Authority 
COP  Certificates of Participation    S/F  Single-Family 
GO  General Obligation Bonds       
    1     

BlackRock MuniYield Arizona Fund, Inc.       
Schedule of Investments April 30, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
       Par   
  Municipal Bonds    (000)  Value 
  Scottsdale, Arizona, Municipal Property Corporation,     
Excise Tax Revenue Bonds (Water and Sewer Development
  Project), Series A, 5%, 7/01/24    $ 1,500  $ 1,621,290 
  Vistancia Community Facilities District, Arizona, GO,     
  6.75%, 7/15/22    1,275  1,214,973 
  Vistancia Community Facilities District, Arizona, GO,     
  5.75%, 7/15/24    750  635,633 
  Yuma County, Arizona, Library District, GO, 5%,     
  7/01/26 (e)    1,565  1,571,135 
        25,583,934 
Education - 20.8%  Arizona Board of Regents Revenue Bonds (Arizona State     
  University System), Series C, 6%, 7/01/25  970  1,097,342 
Arizona Board of Regents Revenue Bonds (Arizona State
  University System), Series C, 6%, 7/01/26  350  392,980 
Arizona Board of Regents Revenue Bonds (Arizona State
  University System), Series C, 6%, 7/01/27  425  473,450 
Arizona Board of Regents Revenue Bonds (Arizona State
  University System), Series C, 6%, 7/01/28  300  332,058 
Arizona Student Loan Acquisition Authority, Student Loan
  Revenue Refunding Bonds, AMT, Junior Subordinated     
  Series B-1, 6.15%, 5/01/29    3,285  3,135,434 
Maricopa County, Arizona, IDA, Education Revenue Bonds
  (Arizona Charter Schools Project 1), Series A, 6.625%,     
  7/01/20    900  675,999 
  Pima County, Arizona, IDA, Education Revenue Bonds     
(American Charter Schools Foundation), Series A, 5.625%,
  7/01/38    500  329,355 
  Pima County, Arizona, IDA, Education Revenue Bonds     
  (Arizona Charter Schools Project), Series C, 6.70%,  730  569,466 
  Pima County, Arizona, IDA, Education Revenue Bonds     
  (Arizona Charter Schools Project), Series C, 6.75%,  985  691,933 
Pima County, Arizona, IDA, Education Revenue Refunding
  Bonds (Arizona Charter Schools Project II), Series A,     
  6.75%, 7/01/21    575  450,604 
Pima County, Arizona, IDA, Education Revenue Refunding
Bonds (Arizona Charter Schools Project), Series O, 5%,
  7/01/26    1,000  590,140 
University of Arizona, COP, Refunding, Series A, 5.125%,
  6/01/29 (c)    1,005  1,005,181 
  University of Arizona, COP, Series B, 5%, 6/01/28 (c)  1,550  1,544,265 
        11,288,207 
Health - 21.2%  Arizona Health Facilities Authority Revenue Bonds     
  (Catholic Healthcare West), Series A, 6.625%, 7/01/20  1,435  1,535,048 
Arizona Health Facilities Authority, Revenue Refunding
  Bonds (Banner Health System), Series D, 6%, 1/01/30  1,500  1,517,040 
Arizona Health Facilities Authority, Revenue Refunding
  Bonds (Banner Health System), Series D, 5.50%, 1/01/38  1,000  951,540 
2

BlackRock MuniYield Arizona Fund, Inc.       
Schedule of Investments April 30, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
       Par   
  Municipal Bonds    (000)  Value 
Maricopa County, Arizona, IDA, Health Facilities Revenue
  Refunding Bonds (Catholic Healthcare West Project),     
  Series A, 5.50%, 7/01/26    $ 1,850  $ 1,762,957 
Maricopa County, Arizona, IDA, Hospital Facility Revenue
Refunding Bonds (Samaritan Health Services), Series A,
  7%, 12/01/16 (b)(f)    1,000  1,244,610 
  Mesa, Arizona, IDA Revenue Bonds (Discovery Health     
  Systems), Series A, 5.625%, 1/01/10 (b)(g)  1,000  1,041,670 
  Scottsdale, Arizona, IDA, Hospital Revenue Refunding     
  Bonds (Scottsdale Healthcare), Series A, 5.25%, 9/01/30  1,000  879,740 
  Tucson, Arizona, IDA, Senior Living Facilities Revenue     
  Bonds (Christian Care Tucson Inc. Project), Series A,     
  6.125%, 7/01/10 (g)(h)    1,000  1,066,380 
Yavapai County, Arizona, IDA, Hospital Facility Revenue
Bonds (Yavapai Regional Medical Center), Series A, 6%,
  8/01/33    1,900  1,498,967 
        11,497,952 
Housing - 14.8%  Maricopa County and Phoenix, Arizona, IDA, S/F Mortgage     
  Revenue Bonds, AMT, Series A-2, 5.80%, 7/01/40 (i)(j)(k)  925  945,248 
Maricopa County and Phoenix, Arizona, IDA, S/F Mortgage
  Revenue Refunding Bonds, AMT, Series A-1, 5.75%,  1,270  1,296,378 
Maricopa County, Arizona, IDA, S/F Mortgage Revenue
  Bonds, AMT, Series 3-B, 5.25%, 8/01/38 (i)(j)(k)  1,667  1,655,304 
  Phoenix and Pima County, Arizona, IDA, S/F Mortgage     
  Revenue Bonds, AMT, Series 1A, 5.65%, 7/01/39 (j)(k)  796  808,957 
  Phoenix and Pima County, Arizona, IDA, S/F Mortgage     
Revenue Refunding Bonds, AMT, Series 2007-1, 5.25%,
  8/01/38 (i)(j)(k)    1,678  1,703,631 
  Phoenix, Arizona, IDA, S/F Mortgage Revenue Bonds, AMT,     
  Series 2007-2, 5.50%, 8/01/38 (i)(j)(k)    1,650  1,660,178 
        8,069,696 
State - 12.3%  Arizona School Facilities Board, COP, 5.125%, 9/01/21  1,000  1,024,690 
  Arizona School Facilities Board, COP, 5.75%, 9/01/22  2,000  2,134,180 
Arizona State Transportation Board, Highway Revenue
  Bonds, Series B, 5%, 7/01/27    475  501,054 
Arizona State Transportation Board, Highway Revenue
  Bonds, Series B, 5%, 7/01/30    2,000  2,068,260 
Arizona Tourism and Sports Authority, Tax Revenue Bonds
  (Baseball Training Facilities Project), 5%, 7/01/16  1,000  939,010 
        6,667,194 
Transportation - 2.8%  Phoenix, Arizona, Civic Improvement Corporation, Senior     
  Lien Airport Revenue Bonds, AMT, Series A, 5%, 7/01/33  1,000  988,870 

3

BlackRock MuniYield Arizona Fund, Inc.       
Schedule of Investments April 30, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
       Par   
  Municipal Bonds    (000)  Value 
  Phoenix, Arizona, Civic Improvement Corporation,     
  Senior Lien Airport Revenue Bonds, AMT, Series B,     
  5.25%, 7/01/32 (a)(b)    $ 600  $ 529,680 
        1,518,550 
Utilities - 21.0%  Gilbert, Arizona, Water Resource Municipal Property     
Corporation, Water System Development Fee and Utility
  Revenue Bonds, Subordinated Lien, 5%, 10/01/29 (b)  900  880,803 
  Phoenix, Arizona, Civic Improvement Corporation,     
  Wastewater System Revenue Refunding Bonds, Senior     
  Lien, 5.50%, 7/01/22    2,000  2,183,320 
Phoenix, Arizona, Civic Improvement Corporation, Water
  System Revenue Refunding Bonds, Junior Lien, 5.50%,     
  7/01/20 (a)(b)    2,500  2,667,200 
Pinal County, Arizona, IDA, Wastewater Revenue Bonds
  (San Manuel Facilities Project), AMT, 6.25%, 6/01/26  500  379,350 
Salt River Project, Arizona, Agriculture Improvement and
Power District, Electric System Revenue Bonds, Series A,
  5%, 1/01/24    1,000  1,069,570 
Salt River Project, Arizona, Agriculture Improvement and
Power District, Electric System Revenue Refunding Bonds,
  Series A, 5%, 1/01/35    1,500  1,517,700 
  Salt Verde Financial Corporation, Arizona, Senior Gas     
  Revenue Bonds, 5%, 12/01/37    2,565  1,728,143 
  Surprise Municipal Property Corporation, Arizona,     
Wastewater Development Impact Fee Revenue Bonds,
  4.90%, 4/01/32    1,250  925,075 
        11,351,161 
  Total Municipal Bonds in Arizona      76,758,694 
Guam - 1.4%         
Utility - 1.4%  Guam Government Waterworks Authority, Water and     
Wastewater System, Revenue Refunding Bonds, 5.875%,
  7/01/35    1,000  792,500 
  Total Municipal Bonds in Guam      792,500 
Puerto Rico - 19.8%         
State - 8.7%  Puerto Rico Commonwealth, GO, Series A, 6%, 7/01/38  800  768,056 
Puerto Rico Commonwealth, Public Improvement, GO,
  Series A, 5.125%, 7/01/31    750  619,778 
  Puerto Rico Public Buildings Authority, Government     
  Facilities Revenue Bonds, Series I, 5.25%, 7/01/33 (l)  1,965  1,582,198 
  Puerto Rico Public Buildings Authority, Government     
  Facilities Revenue Refunding Bonds, Series M-3, 6%,     
  7/01/28 (b)(l)    900  881,856 
  Puerto Rico Public Buildings Authority, Government     
  Facilities Revenue Refunding Bonds, Series N, 5.50%,     
  7/01/27 (l)    1,000  875,830 
        4,727,718 

4

BlackRock MuniYield Arizona Fund, Inc.       
Schedule of Investments April 30, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
             Par   
  Municipal Bonds    (000)           Value 
Transportation - 1.3%  Puerto Rico Commonwealth Highway and Transportation     
Authority, Highway Revenue Refunding Bonds, Series CC,
  5.50%, 7/01/31    $ 790  $ 686,984 
Utilities - 9.8%  Puerto Rico Commonwealth Aqueduct and Sewer Authority,     
  Senior Lien Revenue Bonds, Series A, 6%, 7/01/44 (h)  2,180  2,087,677 
  Puerto Rico Electric Power Authority, Power Revenue     
  Bonds, Series TT, 5%, 7/01/37    1,000  858,740 
  Puerto Rico Electric Power Authority, Power Revenue     
  Bonds, Series WW, 5.375%, 7/01/24    1,000  962,300 
Puerto Rico Industrial, Tourist, Educational, Medical and
  Environmental Control Facilities Revenue Bonds     
(Cogeneration Facility-AES Puerto Rico Project), AMT,
  6.625%, 6/01/26    1,500  1,407,465 
        5,316,182 
  Total Municipal Bonds in Puerto Rico      10,730,884 
  Total Long-Term Investments (Cost - $94,662,755) - 162.6%  88,282,078 
  Short-Term Securities    Shares   
Money Market Fund - 9.0%  CMA Arizona Municipal Money Fund, 0.04% (m)(n)  4,886,891  4,886,891 
  Total Short-Term Securities (Cost - $4,886,891) - 9.0%    4,886,891 
  Total Investments (Cost - $99,549,646*) - 171.6%    93,168,969 
  Liabilities in Excess of Other Assets - (71.6)%    (38,887,852) 
  Net Assets Applicable to Common Shares - 100.0%    $ 54,281,117 

* The cost and unrealized appreciation (depreciation) of investments as of April 30, 2009, as computed for federal
income tax purposes, were as follows:

Aggregate cost  $  99,589,061 
Gross unrealized appreciation  $  1,488,807 
Gross unrealized depreciation    (7,908,899) 
Net unrealized depreciation  $  (6,420,092) 

(a) FGIC Insured.
(b) NPFGC Insured.
(c) AMBAC Insured.
(d) Assured Guaranty Insured.
(e) XL Capital Insured.
(f) Security is collateralized by Municipal or US Treasury Obligations.
(g) US government securities, held in escrow, are used to pay interest on this security as well as to retire the bond in
full at the date indicated, typically at a premium to par.

(h) Radian Insured.
(i) FHLMC Collateralized.
(j) FNMA Collateralized.
(k) GNMA Collateralized.
(l) Commonwealth Guaranteed.

5

BlackRock MuniYield Arizona Fund, Inc.
Schedule of Investments April 30, 2009 (Unaudited)

(m) Investments in companies considered to be an affiliate of the Fund, for purposes of Section 2(a)(3) of the
Investment Company Act of 1940, were as follows:

  Net     
Affiliate  Activity    Income 
CMA Arizona Municipal Money Fund   1,713,545  $               16,612 

(n) Represents the current yield as of report date.

Ÿ The Fund adopted Financial Accounting Standards Board Statement of Financial Accounting Standards No. 157,
"Fair Value Measurements" ("FAS 157"). FAS 157 clarifies the definition of fair value, establishes a framework for
measuring fair values and requires additional disclosures about the use of fair value measurements. Various
inputs are used in determining the fair value of investments, which are as follows:

Ÿ Level 1 - price quotations in active markets/exchanges for identical securities
Ÿ Level 2 - other observable inputs (including, but not limited to: quoted prices for similar assets or
liabilities in markets that are active, quoted prices for identical or similar assets in markets that are not
active, inputs other than quoted prices that are observable for the assets or liabilities (such as interest
rates, yield curves, volatilities, prepayment speeds, loss severities, credit risks and default rates) or
other market-corroborated inputs)

Ÿ Level 3 - unobservable inputs based on the best information available in the circumstance, to the extent
observable inputs are not available (including the Fund's own assumptions used in determining the fair
value of investments)

The inputs or methodology used for valuing securities are not necessarily an indication of the risk associated with
investing in those securities. For information about the Fund's policy regarding valuation of investments and other
significant accounting policies, please refer to the Fund's most recent financial statements as contained in its
semi-annual report.

The following table summarizes the inputs used as of April 30, 2009 in determining the fair valuation of the Fund's
investments:

Valuation    Investments in 
Inputs    Securities 
    Assets 
Level 1  $  4,886,891 
Level 2    88,282,078 
Level 3    - 
Total  $  93,168,969 

6

Item 2 – Controls and Procedures

2(a) – The registrant’s principal executive and principal financial officers or persons performing
similar functions have concluded that the registrant’s disclosure controls and procedures (as
defined in Rule 30a-3(c) under the Investment Company Act of 1940, as amended (the
“1940 Act”)) are effective as of a date within 90 days of the filing of this report based on the
evaluation of these controls and procedures required by Rule 30a-3(b) under the 1940 Act
and Rule 13(a)-15(b) under the Securities Exchange Act of 1934, as amended.

2(b) – There were no changes in the registrant’s internal control over financial reporting (as
defined in Rule 30a-3(d) under the 1940 Act) that occurred during the registrant’s last fiscal
quarter that have materially affected, or are reasonably likely to materially affect, the
registrant’s internal control over financial reporting.

Item 3 – Exhibits

Certifications – Attached hereto

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment
Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by
the undersigned, thereunto duly authorized.

BlackRock MuniYield Arizona Fund, Inc.

By: /s/ Donald C. Burke
Donald C. Burke
Chief Executive Officer of
BlackRock MuniYield Arizona Fund, Inc.

Date: June 19, 2009

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment
Company Act of 1940, this report has been signed below by the following persons on behalf
of the registrant and in the capacities and on the dates indicated.

By: /s/ Donald C. Burke
Donald C. Burke
Chief Executive Officer (principal executive officer) of
BlackRock MuniYield Arizona Fund, Inc.

Date: June 19, 2009

By: /s/ Neal J. Andrews
Neal J. Andrews
Chief Financial Officer (principal financial officer) of
BlackRock MuniYield Arizona Fund, Inc.

Date: June 19, 2009