Trenton in the United States, like many urban areas, has some areas which are more safe than others. It's advised that solo female travelers stay cautious, especially at night and on public transportation. There is noticeable crime rate and it is advised to remain vigilant about personal belongings and safety. As in any unfamiliar destination, it is crucial to gather information about safer zones to visit and to avoid less secure areas, especially during evening hours. Always follow basic safety guidelines, such as avoiding deserted areas alone, keeping belongings secure and staying in well-lit and crowded areas.