| Name | Country | 14C dates | |
|---|---|---|---|
|
1-20 / 460 show all | |||
| Zürich | Switzerland | 35 | Show |
| Zuid-Holland | Netherlands | 53 | Show |
| Zug | Switzerland | 25 | Show |
| Zlín | Czech Republic | 2 | Show |
| Žilinský kraj | Slovakia | 4 | Show |
| Zemgale Region | Bulgaria | 0 | Show |
| Zeeland | Netherlands | 2 | Show |
| Zala | Hungary | 1 | Show |
| Yorkshire | United Kingdom | 40 | Show |
| Worcestershire | United Kingdom | 23 | Show |
| Wiltshire | United Kingdom | 65 | Show |
| Wien | Moldavia | 0 | Show |
| Weststeiermark | Moldavia | 4 | Show |
| Westpommern (Zachodniopomorskie) | Poland | 1 | Show |
| West Messenia | Greece | 10 | Show |
| West Lothian | United Kingdom | 0 | Show |
| Westgriechenland | Greece | 1 | Show |
| Western Isles | United Kingdom | 1 | Show |
| West Dunbartonshire | United Kingdom | 0 | Show |
| Wassluy | Romania | 0 | Show |
