Finding out where most millionaires live in Spain is a captivating endeavor. The answer lies in the bustling capital, Madrid, where the highest concentration of wealthy individuals resides. This vibrant city offers a mix of luxury properties, top-notch gastronomy, and a thriving business hub. Other noteworthy millionaire destinations include glamorous coastal cities like Marbella and Barcelona, which cater to the affluent with their opulent lifestyle and picturesque views. Whether it’s the charm of Madrid or the glamour of the coast, Spain has plenty to offer to those seeking a haven for millionaire living.