The table above illustrates an overview of the annual crime reported in Grass Valley, CA. These figures on reported criminal activity in Grass Valley, CA, based on a reported crime per 100,000 citizens, is shown in order to compare these rates across disparate categories. You will notice that the crimes collected here, for comparison purposes, have been separated between violent crimes and those involving or threatening property. According to the annual crime data, the crime rate in Grass Valley, CA is 99% higher than the average of the whole of the state of California, and when compared with the national average, is 112% higher than. When looking at violent crimes, Grass Valley, CA has 109% higher than violent crime rate than California average, while remaining 140% higher than the national average. In property crime, Grass Valley, CA is 98% higher than the average of California and is 108% higher than the national average.