Exhibit 32.2

CERTIFICATION OF THE PRINCIPAL FINANCIAL OFFICER

PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of The Washington Post Company (the “Company”) on Form 10-Q for the period ended September 28, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John B. Morse, Jr., Vice President-Finance (principal financial officer) of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John B. Morse, Jr.

John B. Morse, Jr.

Vice President-Finance

October 31, 2003