Idaho has one city that ranks highly on the list and comes in as one of the safest cities in the entire country. Boise comes in on the list as the fifth safest city in the United States. Boise is 26 in home and community safety, 46 in natural disaster risk, and 19 in financial safety. Boise has the fewest traffic fatalities per capita, also working in its favor as being a safe city. While many in Idaho may feel Boise has become more dangerous in recent years, this list says otherwise.