SmartAsset, an online consumer-focused financial information website has released a study of 370 U.S. suburbs with a population of at least 5,000 that are within 15 to 45 minutes of the 100 largest U.S. cities. 

Rockville, MD was ranked the 12th safest of the 370  U.S. suburbs analyzed in SmartAsset’s 2023 report

To find the safest suburbs, SmartAsset compared the data for the 370 suburbs by the following metrics:

• Violent crime rate
• Property crime rate
• Vehicular mortality rate
• Drug poisoning mortality rate
• Percentage of the population engaging in excessive drinking

All metrics were measured at the county level, with the exception of violent and property crime data which was measured at the city level.