EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Shareholders and Board of Trustees of

The Investment Company of America:

In planning and performing our audit of the financial statements of The Investment Company of America (the "Fund") as of and for the year ended December 31, 2010, in accordance with the standards of the Public Company Accounting Oversight Board (United States), we considered the Fund's internal control over financial reporting, including controls over safeguarding securities, as a basis for designing our auditing procedures for the purpose of expressing our opinion on the financial statements and to comply with the requirements of Form N-SAR, but not for the purpose of expressing an opinion on the effectiveness of the Fund's internal control over financial reporting. Accordingly, we express no such opinion.

The management of the Fund is responsible for establishing and maintaining effective internal control over financial reporting. In fulfilling this responsibility, estimates and judgments by management are required to assess the expected benefits and related costs of controls. A company's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and Trustees of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of a company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions or that the degree of compliance with the policies or procedures may deteriorate.

A deficiency in internal control over financial reporting exists when the design or operation of a control does not allow management or employees, in the normal course of performing their assigned functions, to prevent or detect misstatements on a timely basis. A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting, such that there is a reasonable possibility that a material misstatement of the company's annual or interim financial statements will not be prevented or detected on a timely basis.

Our consideration of the Fund's internal control over financial reporting was for the limited purpose described in the first paragraph and would not necessarily disclose all deficiencies in internal control that might be material weaknesses under standards established by the Public Company Accounting Oversight Board (United States). However, we noted no deficiencies in the Fund's internal control over financial reporting and its operation, including controls for safeguarding securities, that we consider to be a material weakness, as defined above, as of December 31, 2010.

This report is intended solely for the information and use of management and the Board of Trustees of The Investment Company of America and the Securities and Exchange Commission and is not intended to be and should not be used by anyone other than these specified parties.

DELOITTE & TOUCHE LLP

Costa Mesa, California

February 9, 2011

EX-99.77Q1 OTHR EXHB

The Investment Company of America 333 South Hope Street Los Angeles, California 90071 Telephone (213) 486-9200 Fax (213) 486-9455
December 31, 2010
Because the electronic format for filing Form N-SAR does not provide adequate space for responding to Items 72DD1 and 72DD2, 73A1 and 73A2, 74U1 and74U2, and 74V1 and 74V2, complete answers are as follows:
Item 72DD1 and 72DD2
Total income dividends for which record date passed during the period
Share Class	Total Income Dividends (000’s omitted)
Class A	$1,005,853
Class B	$21,001
Class C	$28,562
Class F1	$28,517
Class F2	$13,921
Total	$1,097,854
Class 529-A	$25,697
Class 529-B	$2,163
Class 529-C	$4,217
Class 529-E	$934
Class 529-F1	$554
Class R-1	$982
Class R-2	$8,218
Class R-3	$13,829
Class R-4	$13,162
Class R-5	$20,363
Class R-6	$47,583
Total	$137,702
Item 73 A1 and 73A2
Distributions per share for which record date passed during the period
Share Class	Dividends from Net Investment Income
Class A	$0.5600
Class B	$0.3524
Class C	$0.3474
Class F1	$0.5497
Class F2	$0.6186
Class 529-A	$0.5458
Class 529-B	$0.3261
Class 529-C	$0.3372
Class 529-E	$0.4680
Class 529-F1	$0.5979
Class R-1	$0.3551
Class R-2	$0.3466
Class R-3	$0.4685
Class R-4	$0.5485
Class R-5	$0.6267
Class R-6	$0.6410
Item 74U1 and 74U2
Number of shares outstanding
Share Class	Shares Outstanding (000’s omitted)
Class A	1,732,646
Class B	51,001
Class C	79,087
Class F1	55,415
Class F2	23,769
Total	1,941,918
Class 529-A	48,414
Class 529-B	5,882
Class 529-C	12,555
Class 529-E	2,029
Class 529-F1	977
Class R-1	2,791
Class R-2	23,325
Class R-3	29,430
Class R-4	24,214
Class R-5	31,810
Class R-6	82,778
Total	264,205
Item 74V1 and 74V2
Net asset value per share (to nearest cent)
Share Class	Net Asset Value Per Share
Class A	$28.16
Class B	$28.05
Class C	$27.97
Class F1	$28.12
Class F2	$28.15
Class 529-A	$28.12
Class 529-B	$28.06
Class 529-C	$28.06
Class 529-E	$28.07
Class 529-F1	$28.10
Class R-1	$28.02
Class R-2	$28.05
Class R-3	$28.10
Class R-4	$28.12
Class R-5	$28.15
Class R-6	$28.15