The GSA website lists two federal buildings in Reno
Clifton Young Building
Primary Tenants: U.S. Bankruptcy Court, U.S. Trustees, Social Security Administration Office of Disability Adjudication and Review, Army Corps of Engineers, GSA, Federal Protective Service, Small Business Administration
Bruce Thompson Building
Primary Tenants: U.S. District Court, U.S. Marshals Service, U.S. Probation and Pretrial Services, Senator Heller, Senator Reid, Corporation for National Community Services
Those are just the agencies that occupy the federal buildings. There are several others that don't occupy federal buildings. Here in Albuquerque, there is a federal building plaza downtown, but there are multitudes of other federal agencies spread around town in non-federal installations. The Forest Service has its entire accounting, IT, and human resources operations located in Albuquerque, and none are located at the federal building.
There are many more than that.