Peru, Indiana, US is relatively safe for solo female travelers. It is a friendly small town with a low crime rate. Like any location, it's crucial to maintain basic precautions such as not walking alone at night in less crowded areas, staying in well-lit areas, avoiding less crowded places, securing your belongings, and being cautious of strangers. Always update loved ones about your whereabouts, and keep local emergency numbers handy. Even though it's quite a safe location, it's always essential to stay vigilant and cautious.