Channel 7 News Boston Seven Mass. communities ranked among 100 safest in America. Seven Massachusetts communities have been ranked among the 100 safest in America for 2022, according to a new study. CCTV Camera World on Thursday released a study on the 100 safest communities in America after analyzing the most recent FBI crime data through 2020. The security and surveillance systems company says its rankings were determined by measuring crimes per 100,000 residents in more than 7,000 communities across the country. Wayland was ranked the safest community in the country with just 7.22 crimes per 100,000 residents.