Despite merchants' concerns, Hillsboro Chamber rebrands July 17 2021 After a member vote, the Hillsboro Chamber of Commerce changed its name to the 'Washington County Chamber of Commerce.' The Hillsboro Chamber of Commerce has been renamed the "Washington County Chamber of Commerce." Members of the chamber voted to officially approve a rebrand of the business organization during a nearly two-week period which ended Monday, July 12, according to an announcement by the chamber Tuesday, July 13. The Washington County Chamber says it is seeking to use the new name to amplify members' voices at the county and state levels, as well as bring in new members from unincorporated Washington County.