County Auditor

County Auditor Duties and Mission

Our Mission

Partner with County Departments and Offices to help enhance the quality of services for all St. Louis County Employees and County Residents.

Our Duties
  • Review the accounting system of the County and recommend changes as deemed necessary for greater economy and efficiency of public funds.
  • Audit the accounts and records of accountable officers and employees of the County.
  • Investigate all matters relating to the receipt, disbursement, and application of public funds.
  • Make such other investigations and reports in relation to fiscal matters as directed by the Council.
County External Audits

The external audits linked on the St. Louis County Auditor’s Website are independent external audits conducted by external auditors as described in each report. The links to the audits are provided on this website to enhance transparency, convenience, and accessibility to information regarding St. Louis County Government.

Children Service Fund
Consulting Engagement 1/1/2015 - 12/31/2016

2016 CAFR (complete report)

2017 CAFR (complete report)

Uniform Guidance Single Audit Report
Year Ended December 31, 2016
Contact Us
Mark Tucker
St. Louis County Auditor 

41 South Central Ave. 1st Floor
Clayton, MO 63105

Phone: 314-615-5491
Fax: 314-615-7890
Fraud Hotline: 314-615-7000
E-Mail: [email protected]