Warrington is a fairly safe place to be; yet like most of the country has problems with violent crime, usually by bored teenagers.The town centre is safe most of the time, but it is best be on your guard around 6-9pm between shops closing and pubs becoming busy and around closing time for clubs, as the area will fill up with drunk people.
Avoid groups of teenagers. Warrington is one of the most culturally and ethnically homogeneous areas in the country, so if your are non-white, gay or dress unconventionally then be sure to have your wits about you, especially in the estates closer to town. Be especially careful around Town Cetre in particular 'The Fountain' at Market Gate, Bewsey, Dallam, Orford all parts, Longford, Old Hall, Howley and Watkin Street near Tesco estates. However, you will probably not encounter any trouble at all, but stay with a local who knows the area well, and you will be fine.