The 12 municipalities comprising the Terrassa demarcation area - with
a surface area of 373.47 km2 - have a population of 374,220 people.
This is a young population, 70 % of which being working age (between
15 and 65 years) population and 16 % being aged less than 15 years.
This profile is largely the result of the immigrant influx into this
area throughout the 20th century.