Switzerland has recorded its highest prison population on record, with official data showing inmate numbers reached an unprecedented level at the beginning of 2026 amid mounting pressure on the country’s correctional system.
According to figures released by the Swiss Federal Statistical Office, a total of 7,119 people were being held in Swiss prisons as of January 31, 2026, the highest number recorded since official prison statistics began.
The surge in inmate numbers has pushed prison occupancy rates nationwide to 97%, raising concerns over overcrowding, detention conditions, and the ability of authorities to maintain European human rights standards within correctional facilities.
The data showed that:
• 63% of inmates were serving criminal sentences or judicial measures
• 31% were being held in pre-trial detention or for security-related reasons
• 6% were imprisoned for other administrative or legal causes
Despite the increase in the prison population, Switzerland also reported a sharp decline in short-term custodial sentences, which fell to their lowest level on record. Analysts say the trend may reflect a gradual shift in Swiss judicial policy towards alternative punishments and non-custodial sentencing.
The statistics were published alongside broader criminal conviction data covering 2025. According to the report, 111,962 adults were convicted in Switzerland last year, with traffic-related offences accounting for more than half of all recorded convictions.
The figures have intensified debate over the capacity of Switzerland’s prison infrastructure to accommodate rising inmate numbers while complying with strict European standards governing detention space, healthcare access, and prisoner welfare.




