Summary: Data shows Part I crimes only. Part I crimes include Homicide, Rape, Robbery, Aggravated Assault, Burglary, Larceny - Theft, Motor Vehicle Theft, and Arson. The data table and chart below provide historical comparisons with other cities in Alameda County and display these types of crimes per 10,000 citizens. Union City is in the middle when compared to other cities, but has seen its crime rate decrease over the past 3 years due to increased funding of public safety enforcement and prevention programs.