Naperville is considered to be one of the safest cities in the United States, with a notably low crime rate. Its downtown area is well lit, pedestrian-friendly and often patrolled by police, providing an additional sense of security for solo female travelers. Whether during the day or late at night, locals and visitors alike feel safe exploring its historic sites, parks, and riverwalk. Just remember to follow protective measures as you would in any other location, such as remaining vigilant about your surroundings and avoiding deserted or poorly lit areas after dark.