The police recorded 69.6 crimes per 1,000 people a year in Altrincham from July 2023 to June 2026, 9% lower than the typical town's 76.2. The most common was violence and sexual offences, at 26.9. In the 12 months to June 2026 it was 56.0, down from 76.8 in the 12 months to June 2024.