The table above provides a full overview of all reported crimes in Union City, CA for the year. The sum of recorded criminal acts in Union City, CA is displayed; for comparisons, each offense is also shown in regards to the amount of offenses per 100,000 people. Along with this, they are separated into multiple categories: violent crimes and property crimes. The crime data reveals that the overall Union City, CA crime rates are 16% lower than in comparison to the California mean and are 11% lower than the nation's mean. In regards to violent offenses, Union City, CA has a rate that is 17% lower than the California average; compared to the United States, it is 5% lower than. Looking at crimes involving property, Union City, CA is 16% lower than its state's mean, and 11% lower than the country's average.