Old but gold, from 2017.
The project "Crime in Context" by the non-profit organization The Marshall Project dealt with the question that was much discussed in the US election campaign: Is the crime rate rising or falling in the United States? The Marshall Project itself collected data from a total of 40 years and from almost 70 of the largest police departments in the country and evaluated them using complex statistical methods.
Users can have this displayed graphically on the project page for all cities and for various offenses. It also shows in which cities crime actually increased and where it fell. The site enables US citizens to classify the sometimes contradicting statements made by politicians on the subject.