| Name | Diadema, São Paulo |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 30,700,000 |
| Date founded | 1959 |
| Elevation (m) | 780 |
| Country | Brazil |
| Administrative division | São Paulo |
| Continent | Americas |
| Latitude (°) | -23.6861114502 |
| Waterbody | |
| Longitude (°) | -46.6105537415 |
| Website | http://www.diadema.sp.gov.br |
| Population (people) | 412,428 (01/07/2015) |
| Demonym |