According to the FBI's Uniform Crime Reporting (UCR) Program, the following states have seen the largest percentage decreases in violent crime rates in the past five years:
State Percentage Decrease
New Jersey 47.6%
Massachusetts 46.5%
New York 45.1%
Connecticut 44.4%
Pennsylvania 43.6%
Rhode Island 42.7%
Maryland 42.3%
Vermont 41.5%
Delaware 40.9%
Ohio 39.9%