| Name | Tarquinia |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 279,500,000 |
| Date founded | |
| Elevation (m) | 132 |
| Country | Italy |
| Administrative division | Lazio |
| Continent | Europe |
| Latitude (°) | 42.2491683960 |
| Waterbody | |
| Longitude (°) | 11.7561111450 |
| Website | http://www.tarquinia.net/ |
| Population (people) | 16,269 (01/01/2018) |
| Demonym |