| General Information | | |
| City Name | Union City | |
| State | California | |
| Population 2000 | 66,869 | |
| Housing Units | 18,877 | |
| Total Area | 19 square miles | |
| Water Area | square miles | |
| Land Area | 19 square miles | |
| Population Density | 3,473 people/square mile | |
| Housing Density | 980 units/square mile | |
| Law Enforcement Employees | 112 | |
| Violent Crimes | 444 | |
| Murders/Manslaughters | 1 | |
| Forcible Rapes | 12 | |
| Robberies | 215 | |
| Aggravated Assaults | 216 | |
| Violent Crimes | 444 | |
| Property Crimes | 2,266 | |
| Burglaries | 508 | |
| Larceny Thefts | 1,219 | |
| Motor Vehicle Thefts | 539 | |
| Arsons | 21 | |