Pozuelo is the municipality with the highest average income in Spain, tripling that of Iznalloz (Granada).

Pozuelo de Alarcón in Madrid and Matadepera in Barcelona have been identified as the Spanish municipalities with the highest average income among those with populations exceeding 2,000 inhabitants. Data indicates that Pozuelo de Alarcón leads the nation with an average income of 32,612 euros per inhabitant, while Matadepera follows with 28,607 euros.

These figures represent a significant economic disparity, as the average income in both municipalities is triple that of Iznalloz, Granada, which is recorded as the municipality with the lowest average income in Spain. The data highlights the notable economic divide between these high-income areas and the country's lowest-earning regions.