PAGE 1 000 B000000 07/31/2017 000 C000000 0000882152 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 BLACKROCK MUNIYIELD CALIFORNIA FUND, INC. 001 B000000 811-06499 001 C000000 8004417762 002 A000000 100 BELLEVUE PARKWAY 002 B000000 WILMINGTON 002 C000000 DE 002 D010000 19809 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 008 A000001 BLACKROCK ADVISORS, LLC 008 B000001 A 008 C000001 801-47710 008 D010001 WILMINGTON 008 D020001 DE 008 D030001 19809 012 A000001 COMPUTERSHARE TRUST COMPANY, N.A. (COMMON) 012 B000001 85-11340 012 C010001 CANTON 012 C020001 MA 012 C030001 02021 012 A000002 THE BANK OF NEW YORK MELLON (PREFERRED) 012 B000002 85-05006 012 C010002 NEW YORK 012 C020002 NY 012 C030002 10286 013 A000001 DELOITTE & TOUCHE LLP 013 B010001 BOSTON 013 B020001 MA 013 B030001 02116 014 A000001 BLACKROCK EXECUTION SERVICES 014 B000001 8-48719 014 A000002 BLACKROCK INVESTMENTS, LLC 014 B000002 8-48436 014 A000003 HARRIS WILLIAMS LLC 014 B000003 8-53380 014 A000004 PNC CAPITAL MARKETS, INC. 014 B000004 8-32493 PAGE 2 014 A000005 PNC INVESTMENTS LLC 014 B000005 8-66195 014 A000006 SOLEBURY CAPITAL, LLC 014 B000006 8-67548 015 A000001 STATE STREET BANK & TRUST COMPANY 015 B000001 C 015 C010001 BOSTON 015 C020001 MA 015 C030001 02111 015 E010001 X 018 000000 Y 019 A000000 Y 019 B000000 275 019 C000000 BLKRKADVSR 020 A000001 BANK OF AMERICA CORP 020 B000001 56-0906609 020 C000001 3 021 000000 3 022 A000001 BLACKROCK LIQUIDITY CASH FUNDS, MUNICASH 022 B000001 52-0983343 022 C000001 64109 022 D000001 63517 022 A000002 CITIGROUP GLOBAL MARKETS INC 022 B000002 11-2418191 022 C000002 54904 022 D000002 47402 022 A000003 MORGAN STANLEY & CO INC 022 B000003 13-2655998 022 C000003 20654 022 D000003 69313 022 A000004 PERSHING LLC 022 B000004 13-2741729 022 C000004 31983 022 D000004 4373 022 A000005 RBC CAPITAL MARKETS CORP 022 B000005 13-5033225 022 C000005 19971 022 D000005 12093 022 A000006 GOLDMAN SACHS & CO 022 B000006 13-5108880 022 C000006 11692 022 D000006 10484 022 A000007 BANK OF AMERICA CORP 022 B000007 56-0906609 022 C000007 9264 022 D000007 9992 022 A000008 HILLTOP SECURITIES INC 022 B000008 75-1382137 022 C000008 8543 022 D000008 9967 022 A000009 BARCLAYS CAPITAL INC. PAGE 3 022 B000009 06-1031656 022 C000009 12566 022 D000009 4541 022 A000010 NATIONAL FINANCIAL SERVICES LLC 022 B000010 04-3523567 022 C000010 0 022 D000010 16070 023 C000000 256018 023 D000000 274986 024 000000 N 026 A000000 N 026 B000000 N 026 C000000 N 026 D000000 Y 026 E000000 N 026 F000000 N 026 G010000 N 026 G020000 N 026 H000000 N 027 000000 N 028 A010000 0 028 A020000 0 028 A030000 0 028 A040000 0 028 B010000 0 028 B020000 0 028 B030000 0 028 B040000 0 028 C010000 0 028 C020000 0 028 C030000 0 028 C040000 0 028 D010000 0 028 D020000 0 028 D030000 0 028 D040000 0 028 E010000 0 028 E020000 0 028 E030000 0 028 E040000 0 028 F010000 0 028 F020000 0 028 F030000 0 028 F040000 0 028 G010000 0 028 G020000 0 028 G030000 0 028 G040000 0 028 H000000 0 030 A000000 0 030 B000000 0.00 PAGE 4 030 C000000 0.00 031 A000000 0 031 B000000 0 032 000000 0 033 000000 0 035 000000 0 036 B000000 0 038 000000 0 042 A000000 0 042 B000000 0 042 C000000 0 042 D000000 0 042 E000000 0 042 F000000 0 042 G000000 0 042 H000000 0 043 000000 0 044 000000 0 045 000000 Y 046 000000 N 047 000000 Y 048 000000 0.500 048 A010000 0 048 A020000 0.000 048 B010000 0 048 B020000 0.000 048 C010000 0 048 C020000 0.000 048 D010000 0 048 D020000 0.000 048 E010000 0 048 E020000 0.000 048 F010000 0 048 F020000 0.000 048 G010000 0 048 G020000 0.000 048 H010000 0 048 H020000 0.000 048 I010000 0 048 I020000 0.000 048 J010000 0 048 J020000 0.000 048 K010000 0 048 K020000 0.000 049 000000 N 050 000000 N 051 000000 N 052 000000 N 053 A000000 Y 053 B000000 Y 053 C000000 N PAGE 5 054 A000000 Y 054 B000000 Y 054 C000000 N 054 D000000 N 054 E000000 N 054 F000000 N 054 G000000 N 054 H000000 Y 054 I000000 N 054 J000000 Y 054 K000000 N 054 L000000 N 054 M000000 Y 054 N000000 N 055 A000000 Y 055 B000000 N 056 000000 Y 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 N 060 B000000 N 061 000000 0 062 A000000 Y 062 B000000 0.0 062 C000000 0.0 062 D000000 0.0 062 E000000 0.0 062 F000000 0.0 062 G000000 0.0 062 H000000 0.0 062 I000000 0.0 062 J000000 0.0 062 K000000 0.0 062 L000000 0.3 062 M000000 0.0 062 N000000 0.0 062 O000000 166.8 062 P000000 0.0 062 Q000000 0.0 062 R000000 0.0 063 A000000 0 063 B000000 21.8 064 A000000 Y 064 B000000 N 066 A000000 N 067 000000 N 068 A000000 N 068 B000000 N 069 000000 N 070 A010000 Y PAGE 6 070 A020000 N 070 B010000 N 070 B020000 N 070 C010000 Y 070 C020000 N 070 D010000 N 070 D020000 N 070 E010000 Y 070 E020000 Y 070 F010000 N 070 F020000 N 070 G010000 Y 070 G020000 N 070 H010000 N 070 H020000 N 070 I010000 N 070 I020000 N 070 J010000 N 070 J020000 N 070 K010000 Y 070 K020000 Y 070 L010000 N 070 L020000 N 070 M010000 N 070 M020000 N 070 N010000 Y 070 N020000 N 070 O010000 Y 070 O020000 N 070 P010000 Y 070 P020000 N 070 Q010000 N 070 Q020000 N 070 R010000 N 070 R020000 N 071 A000000 191908 071 B000000 212609 071 C000000 571871 071 D000000 34 072 A000000 12 072 B000000 22780 072 C000000 6 072 D000000 0 072 E000000 0 072 F000000 2887 072 G000000 96 072 H000000 0 072 I000000 31 072 J000000 25 072 K000000 0 072 L000000 8 PAGE 7 072 M000000 37 072 N000000 10 072 O000000 0 072 P000000 3748 072 Q000000 0 072 R000000 52 072 S000000 42 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 62 072 X000000 6998 072 Y000000 1 072 Z000000 15789 072AA000000 1752 072BB000000 0 072CC010000 0 072CC020000 25046 072DD010000 17120 072DD020000 0 072EE000000 6483 073 A010000 0.8001 073 A020000 0.0000 073 B000000 0.3033 073 C000000 0.0000 074 A000000 394 074 B000000 0 074 C000000 0 074 D000000 557761 074 E000000 0 074 F000000 0 074 G000000 0 074 H000000 0 074 I000000 1011 074 J000000 0 074 K000000 1 074 L000000 7241 074 M000000 18 074 N000000 566426 074 O000000 1302 074 P000000 470 074 Q000000 0 074 R010000 0 074 R020000 0 074 R030000 0 074 R040000 124508 074 S000000 105690 074 T000000 334456 074 U010000 21419 074 U020000 0 074 V010000 15.61 PAGE 8 074 V020000 0.00 074 W000000 0.0000 074 X000000 6005 074 Y000000 132663 075 A000000 0 075 B000000 338553 076 000000 15.43 077 A000000 Y 077 B000000 Y 077 I000000 Y 077 O000000 N 077 Q010000 Y 078 000000 N 080 A000000 FEDERAL INSURANCE COMPANY 080 B000000 St. Paul Fire & Marine Insurance Company 080 C000000 61550 081 A000000 Y 081 B000000 75 082 A000000 N 082 B000000 0 083 A000000 N 083 B000000 0 084 A000000 N 084 B000000 0 085 A000000 Y 085 B000000 N 086 A010000 62 086 A020000 971 086 B010000 0 086 B020000 0 086 C010000 0 086 C020000 0 086 D010000 0 086 D020000 0 086 E010000 0 086 E020000 0 086 F010000 0 086 F020000 0 087 A010000 COMMON STOCK 087 A020000 09254M105 087 A030000 MYC 087 B010000 PREFERRED STOCK 088 A000000 N 088 B000000 N 088 C000000 N 088 D000000 Y SIGNATURE NEAL J. ANDREWS TITLE CFO