Oregon, overall, is a safe state for solo female travelers. Major cities like Portland, Eugene, and Salem have well-lit and well-populated areas that are safe, and the locals are generally friendly and willing to lend a hand if needed. However, like any place, it's also important to exercise basic precautions. Some neighborhoods and areas can be unsafe at night or when less populated. Public transportation is usually safe but can occasionally be a hotspot for petty crime. Natural areas are quite safe during the day, but do note the addressed risks by wildlife and natural elements when hiking or exploring alone.