Gelnhausen is generally a safe town for female solo travelers. It's a small community where locals are friendly and polite. The crime rate is relatively low, but as with any location, it's still recommended to stay vigilant, especially during the night or in more secluded areas. Public transportation is reliable and easy to navigate, and it's also a walkable town. However, it's important to always keep your belongings secure to prevent pickpocketing.