Is Vallejo safe for solo female travelers?

Vallejo generally presents medium safety for solo female travelers. However, it's always recommended to stay vigilant, especially during the night and in less crowded areas. It is better to be aware of your surroundings, lock your accommodations securely, and not flash expensive items. There are safe neighborhoods to explore, but not all areas have the same safety level. Rates of crime can be high in specific areas so always do your research before going. Using common traveler's safety precautions would ensure a more secure experience.