- The income per inhabitant in Terrassa is below the average of Catalonia and Vallès.
- The gross disposable family income (RFDB) per inhabitant in Terrassa (2019 data) was 17,300 euros, below the Catalan index prepared by Idescat (94.8 out of 100). In the same year, the RFDB of Catalonia was €18,217 and that of Vallès was around €18,500.
- It should be mentioned that part of the high-income population that works, acts or invests in Terrassa does not reside in the city. In this sense, the higher income data of municipalities in the Terrasse urban system, such as Matadepera, Ullastrell, Viladecavalls or Vacarisses, are significant.
- In the city, notable internal income inequalities are detected: the census section with the highest average household income (€49,591) contrasts with the census section with the lowest average household income (€18,074), according to 2017 data .