Overall, Mildura is a safe destination for solo female travelers. It's a smaller city, which is known for its friendly and laid-back atmosphere. Like any city, it's always wise to be aware of your surroundings, especially if you're exploring alone. Street crime is quite low, though it is marginally higher at night, as with any location. However, taking usual safety precautions like not travelling alone late at night, trusting your instincts, and staying in public and well-lit areas can keep you safe. Aussies are generally friendly and helpful so don't hesitate to ask if you need any assistance.