PAGE 1 000 A000000 06/30/2017 000 C000000 0001275617 000 D000000 N 000 E000000 NF 000 F000000 Y 000 G000000 N 000 H000000 N 000 I000000 6.1 000 J000000 A 001 A000000 COHEN & STEERS INFRASTRUCTURE FUND INC. 001 B000000 811-21485 001 C000000 2128323232 002 A000000 280 PARK AVENUE 002 B000000 NEW YORK 002 C000000 NY 002 D010000 10017 003 000000 N 004 000000 N 005 000000 N 006 000000 N 007 A000000 N 007 B000000 0 007 C010100 1 008 A000001 COHEN & STEERS CAPITAL MANAGEMENT, INC. 008 B000001 A 008 C000001 801-27721 008 D010001 NEW YORK 008 D020001 NY 008 D030001 10017 008 A000002 COHEN & STEERS ASIA LIMITED 008 B000002 S 008 C000002 801-00 008 D010002 HONG KONG 008 D050002 HONG KONG 008 D060002 00000 008 A000003 COHEN & STEERS UK LIMITED 008 B000003 S 008 C000003 801-000 008 D010003 LONDON 008 D050003 UNITED KINGDOM 008 D060003 W1S 3DN 010 A000001 COHEN & STEERS CAPITAL MANAGEMENT, INC. 010 B000001 801-27721 010 C010001 NEW YORK 010 C020001 NY 010 C030001 10017 010 A000002 STATE STREET BANK AND TRUST CO. 010 B000002 85-05003 010 C010002 BOSTON 010 C020002 MA 010 C030002 02111 PAGE 2 012 A000001 COMPUTERSHARE 012 B000001 85-05006 012 C010001 JERSEY CITY 012 C020001 NJ 012 C030001 07310 013 A000001 PRICEWATERHOUSECOOPERS LLP 013 B010001 NEW YORK 013 B020001 NY 013 B030001 10017 014 A000001 COHEN & STEERS SECURITIES, LLC 014 B000001 8-44123 015 A000001 STATE STREET CORPORATION 015 B000001 C 015 C010001 BOSTON 015 C020001 MA 015 C030001 02111 015 C040001 8200 015 E010001 X 015 A000002 THE HONGKONG AND SHANGHAI BANKING CORP. LTD. 015 B000002 S 015 C010002 SYDNEY 015 D010002 AUSTRALIA 015 D020002 NSW 2000 015 E040002 X 015 A000003 DEUTSCHE BANK AG 015 B000003 S 015 C010003 VIENNA 015 D010003 AUSTRIA 015 D020003 A-1010 015 E040003 X 015 A000004 HSBC BANK MIDDLE EAST LIMITED 015 B000004 S 015 C010004 DUBAI 015 D010004 United Arab Emirates 015 D020004 502601 015 E040004 X 015 A000005 DEUTSCHE BANK A.G., NETHERLANDS 015 B000005 S 015 C010005 AMSTERDAM 015 D010005 NETHERLANDS 015 D020005 1101 HE 015 E040005 X 015 A000006 CITIBANK N.A. 015 B000006 S 015 C010006 SAO PAULO 015 D010006 BRAZIL 015 D020006 01311-920 015 E040006 X 015 A000007 STATE STREET TRUST COMPANY CANADA 015 B000007 S 015 C010007 TORONTO PAGE 3 015 D010007 CANADA 015 D020007 M5C 3G6 015 E040007 X 015 A000008 CLEARSTREAM BANKING SA 015 B000008 S 015 C010008 LUXEMBOURG 015 D010008 LUXEMBOURG 015 D020008 L-1855 015 E040008 X 015 A000009 BANCO ITAU CHILE 015 B000009 S 015 C010009 SANTIAGO 015 D010009 CHILE 015 D020009 7550198 015 E040009 X 015 A000010 NORDEA BANK FINLAND PLC 015 B000010 S 015 C010010 HELSINKI 015 D010010 FINLAND 015 D020010 00500 015 E040010 X 015 A000011 DEUTSCHE BANK A.G., NETHERLANDS 015 B000011 S 015 C010011 AMSTERDAM 015 D010011 NETHERLANDS 015 D020011 1101 HE 015 E040011 X 015 A000012 DEUTSCHE BANK AG 015 B000012 S 015 C010012 ESCHBORN 015 D010012 GERMANY 015 D020012 D-65760 015 E040012 X 015 A000013 BNP PARIBAS SECURITIES SERVICES, S.C.A. 015 B000013 S 015 C010013 ATHENS 015 D010013 GREECE 015 D020013 115 28 015 E040013 X 015 A000014 STANDARD CHARTERED BANK (HONG KONG) Limited. 015 B000014 S 015 C010014 KWUN TONG 015 D010014 HONG KONG 015 E040014 X 015 A000015 DEUTSCHE BANK AG 015 B000015 S 015 C010015 MUMBAI 015 D010015 INDIA 015 D020015 400 063 015 E040015 X 015 A000016 DEUTSCHE BANK AG PAGE 4 015 B000016 S 015 C010016 JAKARTA 015 D010016 INDONESIA 015 D020016 10310 015 E040016 X 015 A000017 Deutsche Bank S.p.A 015 B000017 S 015 C010017 MILAN 015 D010017 Italy 015 D020017 20121 015 E040017 X 015 A000018 The Hongkong & Shanghai Banking Corp., Ltd. 015 B000018 S 015 C010018 Tokyo 015 D010018 Japan 015 D020018 1030027 015 E040018 X 015 A000019 DEUTSCHE BANK (MALAYSIA) BERHAD INVESTOR SERV 015 B000019 S 015 C010019 KUALA LUMPUR 015 D010019 MALAYSIA 015 D020019 50250 015 E040019 X 015 A000020 BANCO NACIONAL DE MEXICO S.A. (BANAMEX) 015 B000020 S 015 C010020 SANTA FE 015 D010020 MEXICO 015 D020020 01219 015 E040020 X 015 A000021 DEUTSCHE BANK A.G., NETHERLANDS 015 B000021 S 015 C010021 AMSTERDAM 015 D010021 NETHERLANDS 015 D020021 1101 HE 015 E040021 X 015 A000022 THE HONGKONG AND SHANGHAI BANKING CORP LTD. 015 B000022 S 015 C010022 AUCKLAND 015 D010022 NEW ZEALAND 015 D020022 1010 015 E040022 X 015 A000023 NORDEA BANK NORGE ASA 015 B000023 S 015 C010023 OSLO 015 D010023 NORWAY 015 D020023 0368 015 E040023 X 015 A000024 DEUTSCHE BANK AG 015 B000024 S 015 C010024 MAKATI CITY 015 D010024 PHILIPPINES PAGE 5 015 D020024 1226 015 E040024 X 015 A000025 BANK POLSKA KASA OPIEKI SA 015 B000025 S 015 C010025 WARSAW 015 D010025 POLAND 015 D020025 02-091 015 E040025 X 015 A000026 DEUTSCHE BANK A.G., NETHERLANDS 015 B000026 S 015 C010026 AMSTERDAM 015 D010026 NETHERLANDS 015 D020026 1101 HE 015 E040026 X 015 A000027 CITIBANK N.A. 015 B000027 S 015 C010027 SINGAPORE 015 D010027 SINGAPORE 015 D020027 486026 015 E040027 X 015 A000028 FIRST RAND BANK LTD. 015 B000028 S 015 C010028 JOHANNESBURG 015 D010028 SOUTH AFRICA 015 D020028 2001 015 E040028 X 015 A000029 DEUSTCHE BANK AG 015 B000029 S 015 C010029 SEOUL 015 D010029 KOREA 015 D020029 100-752 015 E040029 X 015 A000030 DEUTSCHE BANK S.A.E. 015 B000030 S 015 C010030 MADRID 015 D010030 SPAIN 015 D020030 28020 015 E040030 X 015 A000031 NORDEA BANK AB (PUBL) 015 B000031 S 015 C010031 STOCKHOLM 015 D010031 SWEDEN 015 D020031 105 71 015 E040031 X 015 A000032 CREDIT SUISSE AG 015 B000032 S 015 C010032 ZURICH 015 D010032 SWITZERLAND 015 D020032 8070 015 E040032 X 015 A000033 DEUTSCHE BANK AG PAGE 6 015 B000033 S 015 C010033 TAIPEI 015 D010033 TAIWAN 015 D020033 106 015 E040033 X 015 A000034 STANDARD CHARTERED BANK (THAI) PUBLIC CO. LTD 015 B000034 S 015 C010034 BANGKOK 015 D010034 THAILAND 015 D020034 10500 015 E040034 X 015 A000035 STATE STREET BANK & TRUST COMPANY 015 B000035 S 015 C010035 EDINBURGH 015 D010035 SCOTLAND 015 D020035 EH5 2AW 015 E040035 X 018 000000 Y 019 A000000 Y 019 B000000 22 019 C000000 COHENSTEER 020 A000001 CITIGROUP GLOBAL MARKETS INC. 020 B000001 11-2418191 020 C000001 177 020 A000002 ROYAL BANK OF CANADA 020 B000002 13-5377855 020 C000002 108 020 A000003 J.P. MORGAN SECURITIES, INC. 020 B000003 13-3379014 020 C000003 84 020 A000004 MERRILL LYNCH & CO. 020 B000004 13-5674085 020 C000004 74 020 A000005 SOCIETE GENERALE 020 B000005 13-3557071 020 C000005 71 020 A000006 GOLDMAN SACHS & CO. 020 B000006 13-5108880 020 C000006 68 020 A000007 BARCLAYS CAPITAL INC. 020 B000007 06-1031656 020 C000007 63 020 A000008 MORGAN STANLEY CO. INC. 020 B000008 13-2655998 020 C000008 61 020 A000009 MACQUAIRE BANK LTD. 020 B000009 98-0141094 020 C000009 50 020 A000010 UBS WARBURG 020 B000010 13-3783456 020 C000010 44 PAGE 7 021 000000 1048 022 A000001 STATE STREET BANK AND TRUST CO. 022 B000001 04-1867445 022 C000001 250520 022 D000001 246220 022 A000002 MORGAN STANLEY CO. INC. 022 B000002 13-2655998 022 C000002 33232 022 D000002 2075 022 A000003 WELLS FARGO SECURITIES LLC 022 B000003 94-3379992 022 C000003 5959 022 D000003 6226 022 A000004 TORONTO DOMINION BANK 022 B000004 13-5640479 022 C000004 11272 022 D000004 0 022 A000005 DEUTSCHE BANK SECURITIES INC 022 B000005 13-6124068 022 C000005 6189 022 D000005 2588 022 A000006 CS FIRST BOSTON 022 B000006 13-5659485 022 C000006 8013 022 D000006 648 022 A000007 CITIGROUP GLOBAL MARKETS INC. 022 B000007 11-2418191 022 C000007 3520 022 D000007 2840 022 A000008 MERRILL LYNCH & CO. 022 B000008 13-5674085 022 C000008 4693 022 D000008 693 022 A000009 UBS WARBURG 022 B000009 13-3783456 022 C000009 3363 022 D000009 1425 022 A000010 CANTOR FITZGERALD 022 B000010 13-3680184 022 C000010 1289 022 D000010 2028 023 C000000 343200 023 D000000 267928 024 000000 Y 025 A000001 STATE STREET BANK AND TRUST CO. 025 B000001 04-1867445 025 C000001 D 025 D000001 59000 025 A000002 WELLS FARGO SECURITIES LLC 025 B000002 94-3379992 025 C000002 E PAGE 8 025 D000002 32162 025 A000003 CITIGROUP GLOBAL MARKETS INC. 025 B000003 11-2418191 025 C000003 E 025 D000003 19424 025 A000004 MORGAN STANLEY CO. INC. 025 B000004 13-2655998 025 C000004 E 025 D000004 14036 025 A000005 MERRILL LYNCH & CO. 025 B000005 13-5674085 025 C000005 E 025 D000005 25513 025 A000006 UBS WARBURG 025 B000006 13-3783456 025 C000006 E 025 D000006 10954 025 A000007 CS FIRST BOSTON 025 B000007 13-5659485 025 C000007 E 025 D000007 7855 025 A000008 J.P. Morgan Securities, Inc. 025 B000008 13-3379014 025 C000008 E 025 D000008 30132 025 A000009 SOCIETE GENERALE 025 B000009 13-3557071 025 C000009 E 025 D000009 5353 025 A000010 BARCLAYS CAPITAL INC. 025 B000010 06-1031656 025 C000010 E 025 D000010 7225 025 A000011 MACQUAIRE BANK LTD. 025 B000011 98-0141094 025 C000011 E 025 D000011 1640 026 A000000 N 026 B000000 Y 026 C000000 Y 026 D000000 Y 026 E000000 N 026 F000000 N 026 G010000 Y 026 G020000 N 026 H000000 N 027 000000 N 028 A010000 0 028 A020000 0 028 A030000 0 028 A040000 0 PAGE 9 028 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 0.00 030 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 0.850 048 A010000 0 048 A020000 0.000 PAGE 10 048 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 N 054 A000000 Y 054 B000000 Y 054 C000000 N 054 D000000 N 054 E000000 N 054 F000000 N 054 G000000 Y 054 H000000 Y 054 I000000 N 054 J000000 Y 054 K000000 N 054 L000000 N 054 M000000 Y 054 N000000 N 054 O000000 N 055 A000000 N 055 B000000 Y 056 000000 Y 057 000000 N 058 A000000 N 059 000000 Y 060 A000000 Y 060 B000000 Y 061 000000 0 062 A000000 N 062 B000000 0.0 PAGE 11 062 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 0.0 062 M000000 0.0 062 N000000 0.0 062 O000000 0.0 062 P000000 0.0 062 Q000000 0.0 062 R000000 0.0 063 A000000 0 063 B000000 0.0 066 A000000 Y 066 B000000 N 066 C000000 N 066 D000000 N 066 E000000 N 066 F000000 N 066 G000000 Y 067 000000 N 068 A000000 N 068 B000000 N 069 000000 N 070 A010000 Y 070 A020000 N 070 B010000 Y 070 B020000 N 070 C010000 Y 070 C020000 N 070 D010000 Y 070 D020000 N 070 E010000 Y 070 E020000 N 070 F010000 Y 070 F020000 N 070 G010000 Y 070 G020000 N 070 H010000 Y 070 H020000 N 070 I010000 N 070 I020000 N 070 J010000 Y 070 J020000 Y 070 K010000 Y 070 K020000 Y PAGE 12 070 L010000 Y 070 L020000 Y 070 M010000 Y 070 M020000 Y 070 N010000 Y 070 N020000 Y 070 O010000 Y 070 O020000 Y 070 P010000 Y 070 P020000 N 070 Q010000 Y 070 Q020000 N 070 R010000 N 070 R020000 N 071 A000000 623376 071 B000000 666287 071 C000000 2792900 071 D000000 22 072 A000000 6 072 B000000 9648 072 C000000 48885 072 D000000 0 072 E000000 90 072 F000000 12148 072 G000000 720 072 H000000 0 072 I000000 0 072 J000000 203 072 K000000 0 072 L000000 380 072 M000000 73 072 N000000 0 072 O000000 0 072 P000000 8407 072 Q000000 0 072 R000000 72 072 S000000 10 072 T000000 0 072 U000000 0 072 V000000 0 072 W000000 150 072 X000000 22163 072 Y000000 0 072 Z000000 36460 072AA000000 68500 072BB000000 25340 072CC010000 239253 072CC020000 0 072DD010000 68597 072DD020000 0 072EE000000 0 PAGE 13 073 A010000 0.8000 073 A020000 0.0000 073 B000000 0.0000 073 C000000 0.0000 074 A000000 21728 074 B000000 0 074 C000000 0 074 D000000 0 074 E000000 517508 074 F000000 2364300 074 G000000 0 074 H000000 0 074 I000000 59000 074 J000000 13925 074 K000000 0 074 L000000 14092 074 M000000 65 074 N000000 2990618 074 O000000 10486 074 P000000 2190 074 Q000000 850000 074 R010000 0 074 R020000 0 074 R030000 0 074 R040000 975 074 S000000 0 074 T000000 2126967 074 U010000 85320 074 U020000 0 074 V010000 24.93 074 V020000 0.00 074 W000000 0.0000 074 X000000 42263 074 Y000000 1728272 075 A000000 0 075 B000000 2027922 076 000000 23.63 077 A000000 N 078 000000 N 080 C000000 0 081 B000000 0 082 B000000 0 083 B000000 0 084 B000000 0 086 A010000 0 086 A020000 0 086 B010000 0 086 B020000 0 086 C010000 0 086 C020000 0 086 D010000 0 PAGE 14 086 D020000 0 086 E010000 0 086 E020000 0 086 F010000 0 086 F020000 0 087 A010000 COMMON STOCK 087 A020000 19248A109 087 A030000 UTF 088 A000000 N 088 B000000 N 088 C000000 N 088 D000000 N SIGNATURE ALBERT LASKAJ TITLE TREASURER