Single Audit Report (A-133)
boulder creek with wildflowers

Single Audit Report (A-133)

Federally Funded Programs

The Single Audit Report is required by Office of Management and Budget Circular A-133 which governs the auditing of federal awards made to non-federal entities such as Boulder County. This audit looks primarily at whether the county is in compliance with the requirements of laws, regulations and contracts applicable to each of its major federally funded programs.


The Single Audit is required to be completed by September 30 for the previous calendar year.

2022 Single Audit Report
2021 Single Audit Report
2020 Single Audit Report
2019 Single Audit Report
2018 Single Audit Report

Contact Us

Office of Financial Management

720-564-2718 (fax)


Courthouse West Wing 1st Floor,
2020 13th St.
Boulder, CO 80302
Map and Directions
Hours: 8 a.m. to 4:30 p.m.

Mailing Address

Office of Financial Management
PO Box 471
Boulder, CO 80306-0471