Law enforcement officials say his body was found shortly before 9am. The singer had a history of drug and alcohol abuse.
He had six children from his two marriages. He had been married to his second wife Talinda Ann Bentley for 12 years.
Bennington’s suicide came on the day of his late friend Chris Cornell’s birthday.
Chester, as well as Linkin Park guitarist Brad Delson, had performed Leonard Cohen’s ‘Hallelujah’ for the crowd of mourners at Cornell’s funeral, many of whom were moved to tears.
Linkin Park was set to start touring at the end of July following the release of the bands latest album One More Light.