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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: Anne F. Ackerley, Chief Executive Officer, BlackRock
MuniYield Arizona Fund, Inc., 55 East 52nd Street, New York, NY 10055.

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

Date of fiscal year end: 07/31/2010

Date of reporting period: 10/31/2009

Item 1 – Schedule of Investments

BlackRock MuniYield Arizona Fund, Inc. (MZA)       
Schedule of Investments October 31, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
      Par   
  Municipal Bonds    (000)  Value 
Arizona - 136.6%         
Corporate - 1.5%  Yavapai County IDA, Arizona, RB, Waste Management Inc.     
  Project, Series A, AMT, 4.90%, 3/01/28    $ 1,000  $ 904,380 
County/City/Special District/School  County of Pinal, Arizona, COP, 5.00%, 12/01/26  1,250  1,216,350 
District - 42.2%  County of Pinal, Arizona, COP, 5.00%, 12/01/29  1,250  1,203,925 
  City of Tucson, Arizona, COP, (AGC), 5.00%, 7/01/29  1,000  1,023,810 
  Downtown Phoenix Hotel Corp., RB, Senior, Series A     
  (FGIC), 5.00%, 7/01/36    1,200  959,196 
Downtown Phoenix Hotel Corp., RB, Sub-Series B (MBIA),  
  5.00%, 7/01/36    715  661,482 
  Gila County Unified School District No. 10-Payson, Arizona,     
  GO, School Improvement, Project of 2006, Series A     
  (AMBAC), 1.00%, 7/01/27 (a)    1,000  1,016,970 
  Gilbert Public Facilities Municipal Property Corp., Arizona,     
  RB, 5.50%, 7/01/27    2,000  2,134,260 
Gladden Farms Community Facilities District, GO, 5.50%,  
  7/15/31    750  570,757 
  Greater Arizona Development Authority, Arizona, RB, Santa     
  Cruz County Jail, Series 2, 5.25%, 8/01/31    1,000  1,025,310 
  Maricopa County Community College District, Arizona, GO,     
  Series C, 3.00%, 7/01/22    1,000  930,640 
Maricopa County Elementary School District No. 3-Tempe  
  Elementary, Arizona, GO, Refunding (MBIA), 7.50%, 7/01/10  290  302,209 
Maricopa County Unified School District No. 090 Saddle     
  Mountain, GO, School Improvement, Series A, 5.00%,     
  7/01/14    50  51,880 
Maricopa County Unified School District No. 11-Peoria,     
Arizona, GO, School Improvement, Second Series (MBIA),
  5.00%, 7/01/25    430  451,595 
Maricopa County Unified School District No. 89-Dysart,     
  Arizona, GO, School Improvement, Project of 2006,     
  Series C, 6.00%, 7/01/28    1,000  1,101,340 
  Mohave County Unified School District No. 20 Kingman, GO,     
  School Improvement, Project 2006, Series C (AGC), 5.50%,     
  7/01/20    1,150  1,302,421 
  Mohave County Unified School District No. 20 Kingman, GO,     
  School Improvement, Project 2006, Series C (AGC), 5.00%,     
  7/01/26    1,000  1,060,530 
Phoenix Civic Improvement Corp., RB, Sub-Civic Plaza     
  Expansion Project, Series A (MBIA), 5.00%, 7/01/35  3,325  3,291,550 
  Queen Creek Improvement District No. 1, Special     
  Assessment, 5.00%, 1/01/32    2,000  1,785,620 
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 following list.

AGC  Assured Guaranty Corp.  GO  General Obligation Bonds 
AMBAC  American Municipal Bond Assurance Corp.  IDA   Industrial Development Authority 
AMT  Alternative Minimum Tax (subject to)  MBIA  Municipal Bond Investors Assurance (National 
CAB  Capital Appreciation Bonds    Public Finance Guaranty Corp.) 
COP  Certificates of Participation  RB  Revenue Bonds 
FGIC  Financial Guaranty Insurance Co.  S/F  Single-Family 
GNMA  Government National Mortgage Association     

1

BlackRock MuniYield Arizona Fund, Inc. (MZA)       
Schedule of Investments October 31, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
      Par   
  Municipal Bonds    (000)  Value 
  Scottsdale Municipal Property Corp., Arizona, RB, Water &     
  Sewer Development Project, Series A, 5.00%, 7/01/24  $ 1,500  $ 1,632,975 
  Vistancia Community Facilities District, Arizona,     
  GO, 6.75%, 7/15/22    1,275  1,299,697 
  Vistancia Community Facilities District, Arizona,     
  GO, 5.75%, 7/15/24    750  728,918 
  Yuma County Library District, GO (Syncora), 5.00%, 7/01/26  1,465  1,501,464 
        25,252,899 
Education - 19.8%  Arizona State Board of Regents, Arizona, RB,     
  Series 2008 C, 6.00%, 7/01/25    970  1,112,027 
  Arizona State Board of Regents, Arizona, RB,     
  Series 2008 C, 6.00%, 7/01/26    350  400,281 
  Arizona State Board of Regents, Arizona, RB,     
  Series 2008 C, 6.00%, 7/01/27    425  486,727 
  Arizona State Board of Regents, Arizona, RB,     
  Series 2008 C, 6.00%, 7/01/28    300  342,156 
  Arizona Student Loan Acquisition Authority, Arizona,     
  Refunding RB, Junior Sub-Series B-1, AMT, 6.15%, 5/01/29  3,285  3,288,055 
  Maricopa County IDA, Arizona, RB, Arizona Charter Schools     
  Project 1, Series A, 6.63%, 7/01/20    900  684,369 
  Pima County IDA, RB, American Charter Schools Foundation,     
  Series A, 5.63%, 7/01/38    500  393,475 
Pima County IDA, RB, Arizona Charter Schools Project,                                  
  Series C, 6.70%, 7/01/21    725  672,039 
Pima County IDA, RB, Arizona Charter Schools Project,                                  
  Series C, 6.75%, 7/01/31    985  871,459 
Pima County IDA, RB, Arizona Charter Schools Project,                                  
  Series O, 5.00%, 7/01/26    1,000  735,930 
  Pima County IDA, RB, Charter Schools, II, Series A, 6.75%,     
  7/01/21    575  535,233 
University of Arizona, COP, University Arizona Projects,                                
  Series A (AMBAC), 5.13%, 6/01/29    905  926,286 
University of Arizona, COP, University Arizona Projects,                                
  Series B (AMBAC), 5.00%, 6/01/28    1,400  1,425,214 
        11,873,251 
Health - 21.3%  Arizona Health Facilities Authority, Arizona, RB, Banner     
  Health, Series D, 6.00%, 1/01/30    1,500  1,536,285 
Arizona Health Facilities Authority, Arizona, RB, Banner                                
  Health, Series D, 5.50%, 1/01/38    1,300  1,312,662 
Arizona Health Facilities Authority, Arizona, RB, Catholic                               
  Healthcare West, Series A, 6.63%, 7/01/20    1,435  1,502,646 
Maricopa County IDA, Arizona, RB, Catholic Healthcare                                  
  West, Series A, 5.50%, 7/01/26    1,850  1,877,953 
Maricopa County IDA, Arizona, Refunding RB, Samaritan                                
  Health Services, Series A (MBIA), 7.00%, 12/01/16 (b)  1,000  1,227,020 
  Mesa IDA, RB, Discovery Health System, Series A     
  (MBIA), 5.63%, 1/01/10 (c)    1,000  1,018,850 
  Scottsdale IDA, Arizona, Refunding RB, Scottsdale     
  Healthcare, Series A, 5.25%, 9/01/30    900  886,482 
  Tucson IDA, RB, Christian Care Project, Series A     
  (Radian), 6.13%, 7/01/10 (c)    1,000  1,044,100 

2

BlackRock MuniYield Arizona Fund, Inc. (MZA)       
Schedule of Investments October 31, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
      Par   
  Municipal Bonds    (000)  Value 
  University Medical Center Corp., Arizona, RB, 6.50%,     
  7/01/39    $ 500  $ 527,470 
  Yavapai County IDA, Arizona, RB, Yavapai Regional Medical     
  Center, Series A, 6.00%, 8/01/33    1,800  1,786,284 
        12,719,752 
Housing - 11.3%  Maricopa County & Phoenix Industrial Development     
Authorities, RB, S/F, Series A-1, AMT (GNMA), 5.75%,                          
  5/01/40    1,030  1,060,395 
  Maricopa County & Phoenix Industrial Development     
Authorities, RB, S/F, Series A-2, AMT (GNMA), 5.80%,                          
  7/01/40    760  783,081 
  Maricopa County IDA, Arizona, RB, Series 3-B, AMT     
  (GNMA), 5.25%, 8/01/38    1,457  1,461,460 
  Phoenix & Pima County IDA, RB, Series 1A, AMT     
  (GNMA), 5.65%, 7/01/39    637  652,351 
  Phoenix & Pima County IDA, RB, Series 2007-1, AMT     
  (GNMA), 5.25%, 8/01/38    1,386  1,403,093 
Phoenix IDA, Arizona, RB, Series 2007-2, AMT (GNMA),                        
  5.50%, 8/01/38    1,340  1,376,148 
        6,736,528 
State - 17.1%  Arizona School Facilities Board, Arizona, COP, 5.13%,     
  9/01/21    1,000  1,067,870 
Arizona School Facilities Board, Arizona, COP, 5.75%,                           
  9/01/22    2,000  2,222,060 
Arizona State Transportation Board, RB, Series B, 5.00%,                     
  7/01/30    4,000  4,212,440 
  Arizona Tourism & Sports Authority, RB, Baseball Training     
  Facilities Project, 5.00%, 7/01/16    1,000  1,014,990 
  Greater Arizona Development Authority, Arizona, RB, Series     
  B (MBIA), 5.00%, 8/01/30    1,700  1,721,913 
        10,239,273 
Transportation - 4.4%  Phoenix Civic Improvement Corp., RB, Senior Lien,     
  Series A, 5.00%, 7/01/33    1,000  1,004,120 
  Phoenix Civic Improvement Corp., RB, Senior Lien,     
  Series B, AMT (MBIA), 5.75%, 7/01/17    1,000  1,043,340 
  Phoenix Civic Improvement Corp., RB, Senior Lien,     
  Series B, AMT (MBIA), 5.25%, 7/01/32    600  594,462 
        2,641,922 
Utilities - 19.0%  City of Mesa, Arizona, RB, (MBIA), 5.00%, 7/01/23  1,500  1,612,425 
Gilbert Water Resource Municipal Property Corp., RB,                           
  Subordinate Lien (MBIA), 5.00%, 10/01/29    900  918,243 
  Phoenix Civic Improvement Corp., RB, Junior Lien     
  (MBIA), 5.50%, 7/01/20    2,500  2,701,850 
Phoenix Civic Improvement Corp., Refunding RB, Senior                       
  Lien, 5.50%, 7/01/22    2,000  2,250,600 
  Pinal County IDA, Arizona, RB, San Manuel Facilities     
  Project, AMT, 6.25%, 6/01/26    500  417,950 
Salt River Project Agricultural Improvement & Power                             
  District, RB, Salt River Project, Series A, 5.00%, 1/01/35  1,500  1,536,675 
Salt River Project Agricultural Improvement & Power                             
  District, RB, Series A, 5.00%, 1/01/24    1,000  1,077,000 

3

BlackRock MuniYield Arizona Fund, Inc. (MZA)       
Schedule of Investments October 31, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
      Par   
  Municipal Bonds    (000)  Value 
  Salt Verde Financial Corp., RB, Senior, 5.00%, 12/01/37  $ 1,000  $ 850,600 
        11,365,343 
  Total Municipal Bonds in Arizona      81,733,348 
Guam - 1.6%         
Utilities - 1.6%  Guam Government Waterworks Authority, RB,     
  Water, 5.88%, 7/01/35    1,000  951,040 
  Total Municipal Bonds in Guam      951,040 
Puerto Rico - 20.2%         
County/City/Special District/School  Puerto Rico Sales Tax Financing Corp., RB, CAB, Series A     
District- 1.2%  (MBIA), 5.77%, 8/01/41 (d)    5,000  766,050 
State - 9.0%  Commonwealth of Puerto Rico, GO, Public Improvement,     
  Series A, 5.13%, 7/01/31    75  70,198 
  Commonwealth of Puerto Rico, GO, Series A, 6.00%,     
  7/01/38    800  818,912 
Puerto Rico Public Buildings Authority, RB, Government     
  Facilities, Series I, 5.25%, 7/01/33    1,000  936,910 
Puerto Rico Public Buildings Authority, RB, Government     
  Facilities, Series N, 5.50%, 7/01/27    1,000  994,330 
Puerto Rico Public Buildings Authority, Refunding RB,        
  Government Facilities, M-3 (MBIA), 6.00%, 7/01/28  900  928,116 
  Puerto Rico Sales Tax Financing Corp., RB, First     
  Sub-Series A, 6.38%, 8/01/39    1,500  1,617,870 
        5,366,336 
Transportation - 2.9%  Puerto Rico Highway & Transportation Authority, RB,     
  Series AA (MBIA), 5.50%, 7/01/18    900  939,645 
  Puerto Rico Highway & Transportation Authority, Refunding     
  RB, Series CC, 5.50%, 7/01/31    790  776,199 
        1,715,844 
Utilities - 5.4%  Puerto Rico Aqueduct & Sewer Authority, RB, Senior Lien,     
  Series A (Radian), 6.00%, 7/01/44    2,180  2,222,554 
  Puerto Rico Electric Power Authority, RB,       
  Series WW, 5.38%, 7/01/24    1,000  1,028,880 
        3,251,434 
Utilities: Electric & Gas - 1.7%  Puerto Rico Electric Power Authority, RB,       
  Series WW, 5.50%, 7/01/38    1,000  1,003,340 
  Total Municipal Bonds in Puerto Rico      12,103,004 
  Municipal Bonds Transferred to       
  Tender Option Bond Trusts (e)       
Arizona - 5.2%         
Utilities - 5.2%  Phoenix Civic Improvement Corp., RB, Junior Lien,     
  Series A, 5.00%, 7/01/34    3,000  3,092,640 
  Total Municipal Bonds Transferred to       
  Tender Option Bond Trusts - 5.2%      3,092,640 
  Total Long-Term Investments       
  (Cost - $98,048,624) - 163.6%      97,880,032 

4

BlackRock MuniYield Arizona Fund, Inc. (MZA)       
Schedule of Investments October 31, 2009 (Unaudited)  (Percentages shown are based on Net Assets) 
                                                                                             Short-Term Securities    Shares  Value 
                                                                                             CMA Arizona Municipal Money Fund, 0.00% (f)(g)  687,152  $ 687,152 
                                                                                             Total Short-Term Securities       
                                                                                             (Cost - $687,152) - 1.1%      687,152 
                                                                                             Total Investments (Cost - $98,735,776*) - 164.7%    98,567,184 
                                                                                             Other Assets Less Liabilities - 2.6%      1,586,012 
                                                                                             Liability for Trust Certificates, Including       
                                                                  Interest Expense and Fees Payable - (2.5)%    (1,501,397) 
                                                                                             Preferred Shares, at Redemption Value - (64.8)%    (38,804,499) 
                                                                                             Net Assets Applicable to Common Shares - 100.0%  $ 59,847,300 

* The cost and unrealized appreciation (depreciation) of investments as of October 31, 2009,

as computed for federal income tax purposes, were as follows:

Aggregate cost  $ 97,316,280 
Gross unrealized appreciation  $ 2,466,996 
Gross unrealized depreciation  (2,716,092) 
Net unrealized depreciation  $ (249,096) 

(a) Represents a step-up bond that pays an initial coupon rate for the first period and then a higher
coupon rate for the following periods. Rate shown is as of report date.
(b) Security is collateralized by Municipal or US Treasury Obligations.
(c) 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.
(d) Represents a zero-coupon bond. Rate shown reflects the current yield as of report date.
(e) Securities represent bonds transferred to a tender option bond trust in exchange for which the Fund acquired
the residual interest certificates. These securities serve as collateral in a financing transaction.
(f) 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  $ (3,500,019)             - 

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

• Fair Value Measurements - Various inputs are used in determining the fair value of investments, which are as follows:

• Level 1 - price quotations in active markets/exchanges for identical assets and liabilities
• 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 or liabilities 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)

• Level 3 - unobservable inputs based on the best information available in the circumstances, 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 annual report.

5

BlackRock MuniYield Arizona Fund, Inc. (MZA)

Schedule of Investments October 31, 2009 (Unaudited)
The following table summarizes the inputs used as of October 31, 2009 in determining the fair valuation
of the Fund's investments:

Valuation  Investments in 
Inputs  Securities 
  Assets 
Level 1 - Short-Term Securities  $ 687,152 
Level 2 - Long-Term Investments1  97,880,032 
Level 3  - 
Total  $ 98,567,184 

1See above Schedule of Investments for values in each sector.

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/ Anne F. Ackerley
Anne F. Ackerley
Chief Executive Officer of
BlackRock MuniYield Arizona Fund, Inc.

Date: December 18, 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/ Anne F. Ackerley
Anne F. Ackerley
Chief Executive Officer (principal executive officer) of
BlackRock MuniYield Arizona Fund, Inc.

Date: December 18, 2009

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

Date: December 18, 2009