4 24 
5 25 
5 25 
25 
6 
26 
7 
7 27 
28 
8 
28 
10 
29 
10 
29 
12 
13 30 
31 
14 
32 
16 
17 33 
18 34 
19 35 
35 
20 
21 36 
23 
3
 15,000
15,001 - 20,000 25,001 - 30,000
20,001 - 25,000  30,001
Emerging megaregions: a newspatial scale 
to explore urban sustainability
4
5
 
6
7
8
9
10
11
12
13
 
14
15
16
17
18
19
20
21
22
23
24
25
 
 
26
 
 
27
28
...
29
30
31
32
33
34
35
36
37
BARCELONA IN FIGURES 2017
©  

bcn.cat/barcelonabusiness