Spain’s millionaire population grew by more than 13,000 people last year, it has emerged.

According to the World Wealth Report 2026 by Capgemini, the number of people with investable assets exceeding $1million increased by 5.3% in 2025, reaching a total of 259,700.

The increase was enough to push Spain up one place in the global rankings, making it the 14th country in the world with the highest number of high-net-worth individuals.

Capgemini defines high-net-worth individuals as those with investable assets of more than $1million, excluding their primary residence, collectibles and consumer goods.

The report attributes Spain’s growth largely to the strong performance of financial markets and real estate.

Spain’s stock market capitalisation surged by 71.6% in dollar terms during 2025 after declining the previous year, helped by strong corporate earnings and a particularly profitable year for the banking sector.

Spanish banks recorded combined net profits of €18.5billion during the year, up 5.1% compared to 2024.

Meanwhile, investment in real estate reached more than €18.4billion, representing a 31% increase, while average house prices rose by 9%, further boosting personal wealth.

The trend was not limited to Spain.

Worldwide, the wealth held by high-net-worth individuals rose by 8.7% during 2025 to a record $98.3 trillion (€84.7 trillion), marking the strongest annual growth since 2018.

The number of millionaires globally increased by almost two million people, reaching a total of 25.3 million.

The report also highlights a major shift in how wealthy individuals manage their money.

In 2019, nearly four in 10 wealthy investors worked exclusively with a single wealth management firm. By 2025, that figure had fallen to just 19%.

According to Capgemini, 88% of high-net-worth individuals now use multiple firms in order to access a wider range of investment opportunities, particularly in alternative assets.