Cuyahoga County officials say they will likely keep the money unspent until a voter-approved switch from a county commission to a county council begins in January.
The U.S. attorney's office says about $2.3 million has been repaid of the more than $10 million in restitution judges have ordered to the county, agencies and school districts.
The probe targets Cuyahoga County Commissioner Jimmy Dimora and Cuyahoga County Auditor Frank Russo.
Neither has been charged and both have denied wrongdoing.
More than a dozen people have been charged, with most pleading guilty and agreeing to cooperate.
The Associated Press