The Chattanooga TN crime rate for 2017 was 1065.72 per 100,000 population, a 4.17% increase from 2016. The Chattanooga TN crime rate for 2016 was 1023.05 per 100,000 population, a 3.41% increase from 2015. The Chattanooga TN crime rate for 2015 was 989.32 per 100,000 population, a 1.58% increase from 2014.