As of early 2026, Pozuelo de Alarcón, located just northwest of Madrid, remains the wealthiest municipality in Spain by a significant margin. It consistently reports the highest average gross income in the country, often exceeding €80,000 per inhabitant. This "village" (now a sophisticated suburb) is home to the ultra-exclusive gated community of La Finca, known as a "bunker for the wealthy," housing famous footballers, business tycoons, and celebrities who value extreme privacy and high-tech security. Other top contenders include Boadilla del Monte (also in Madrid) and Sant Just Desvern near Barcelona. These areas benefit from a high concentration of high-ranking service industry professionals and corporate executives. While parts of Marbella—specifically La Zagaleta—might have higher property values and more billionaire residents per square foot, Pozuelo de Alarcón holds the official title for the highest average declared income across its entire population. The wealth in these regions is driven by their proximity to major economic hubs combined with low population density and high-end residential infrastructure that attracts Spain's financial elite.