Sierra Vista is generally a safe destination for solo female travelers. Like any city, it has its less desirable areas, but most parts of the city are secure, and violent crimes are rare. As always, a key part of staying safe is practicing normal precautions such as not walking alone late at night in less-populated areas, keeping an eye on your belongings, and not accepting drinks from strangers. The presence of a military base nearby means there is a constant military police presence which adds to the general feeling of safety. However, due to its proximity to the border, there can be small issues related to illegal border crossings, but these rarely affect tourists.