General Information:
| Population: 128,724 (2025) | 
| Country: Belgique/België/Belgien | 
| Official Website | 
The City and Efus
- Member since 2023
 
			General Information:
| Population: 128,724 (2025) | 
| Country: Belgique/België/Belgien | 
| Official Website | 
The City and Efus
 
				
						
		General Information: Population: 120,261 (2023) Country: Deutschland Official Website The City and Efus
 
				
						
		General Information: Population: 788,842 (2021) Country: France Official Website The City and Efus
 
				
						
		General Information: Population : 1,481,107 (2025) Country: Italia Official Website The City and Efus
 
				
						
		General Information: Population: 63,642 (2021) Country: France Official Website The City and Efus