| General Information | | |
| City Name | Walnut | |
| State | California | |
| Population 2000 | 30,004 | |
| Housing Units | 8,395 | |
| Total Area | 9 square miles | |
| Water Area | square miles | |
| Land Area | 9 square miles | |
| Population Density | 3,341 people/square mile | |
| Housing Density | 935 units/square mile | |
| Law Enforcement Employees | | |
| Violent Crimes | 46 | |
| Murders/Manslaughters | | |
| Forcible Rapes | 6 | |
| Robberies | 25 | |
| Aggravated Assaults | 15 | |
| Violent Crimes | 46 | |
| Property Crimes | 605 | |
| Burglaries | 183 | |
| Larceny Thefts | 348 | |
| Motor Vehicle Thefts | 74 | |
| Arsons | 4 | |