The police recorded 52.6 crimes per 1,000 people a year in Port Glasgow from January 2023 to December 2025, about the same as the typical Scottish town's 54.4. The most common was shoplifting, at 14.2. In the 12 months to December 2025 it was 62.0, up from 49.9 in the 12 months to December 2023.