Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in Registration Statement No. 333___ on
Form S-8 of Peoples Financial Corporation of our report dated June 25, 2007 with respect to our
audits of the net assets available for benefits of Peoples Financial Corporation 401(k) Profit
Sharing Plan as of December 31, 2006 and 2005 and the related statement of changes in net assets
available for benefits for the year ended December 31, 2006, and the related supplemental schedule,
Schedule H, Line 4 — Schedule of Assets (Held at End of Year) as of December 31, 2006, which is
incorporated by reference in this Annual Report on Form 11-K of Peoples Financial Corporation
401(k) Profit Sharing Plan for the year ended December 31, 2006.
/s/
Porter Keadle Moore, LLP
Atlanta, Georgia
June 25, 2007