| Pursuant
      to Section 13 or 15(d) of the | 
| Securities
      Exchange Act of 1934 | 
| Date
      of report (Date of earliest event
      reported):     February 9,
  2011 | 
| EQUIFAX
      INC. | 
| (Exact
      name of registrant as specified in
Charter) | 
| Georgia | 001-06605 | 58-0401110 | ||
| (State
      or other jurisdiction of
      incorporation) |  | (Commission
      File Number) |  | (IRS
      Employer Identification
      No.) | 
| 1550
      Peachtree Street, N.W. Atlanta,
      Georgia | 30309 | |
| (Address
      of principal executive offices) |  | (Zip
      Code) | 
| Registrant’s
      telephone number, including area code:     (404)
      885-8000 | 
| ¨ | Written
      communication pursuant to Rule 425 under the Securities Act (17
      CFR  230.425) | 
| ¨ | Soliciting
      material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12) | 
| ¨ | Pre-commencement
      communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR
      240.14d-2(b)) | 
| ¨ | Pre-commencement
      communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR
      240.13e-4(c)) | 
| (d) | Exhibits | 
| 99.1 | Press
      release of Equifax Inc. dated February 9,
2011. | 
|     
      EQUIFAX INC. | |||
| By: |   /s/ Lee Adrean | ||
| Name: |   Lee
      Adrean | ||
| Title: | Corporate
      Vice President and | ||
| Chief
      Financial Officer | |||
| Date:
      February 9,
2011 | |||
| Exhibit No. |  | Description | 
| 99.1 | Press
      release of Equifax Inc. dated February 9,
  2011. |