Shibuya is generally very safe for solo female travelers. It is one of the safest districts in one of the safest countries in the world. Crime rates are low and people are typically respectful and polite. Despite being a busy and bustling area, it has a structured system that's easy to navigate. The city pays high attention to public safety with well-lit streets and many establishments operating 24/7. Although always good to take basic precautions, units of the police force and surveillance cameras are well-distributed throughout the area.