Uster is generally regarded as a relatively safe city. Almost all parts of the city and its surrounding area are safe to walk around, even late at night. The crime rate is low and the local authorities are efficient and responsive. Locals are helpful, and respect towards women is embedded in Swiss society. As a precaution, it's advisable to maintain the usual vigilance such as not leaving belongings unattended, and staying aware of your environment. However, Uster is safe and welcoming for solo female travelers.