What is the most polygamous country in the world?

The Heart of Polygamy: West and Central Africa’s Enduring Tradition

In parts of West and Central Africa, polygamy isn’t just a cultural footnote—it’s woven into the fabric of daily life. A stretch of land often referred to as the "polygamy belt" cuts across countries like Burkina Faso, Mali, The Gambia, Niger, and Nigeria, where the practice of polygyny—men having multiple wives—remains most prevalent in the world.

Here, tradition, religion, and social structure converge to sustain polygamous relationships. In rural communities especially, having more than one wife is often seen as a sign of status, prosperity, and family strength. Cultural norms passed down through generations, along with certain interpretations of religious teachings, help maintain this long-standing custom.

According to demographic studies, in Niger and Mali, nearly one in three women in marital unions live in polygamous arrangements. In Burkina Faso, the figure isn’t far behind. These numbers surpass those found anywhere else on the planet, making this region the epicenter of polygamous life.

Yet, the practice is not without its challenges. Women in polygamous marriages often face emotional strain, competition, and unequal access to resources. Urbanization and education are slowly shifting attitudes, especially among younger generations, with increasing advocacy for gender equality and women’s rights.

Still, polygamy endures—not as a relic, but as a living tradition shaped by deep-rooted values. While legal systems in some of these countries regulate the practice, cultural acceptance remains high, particularly outside major cities. As societies evolve, so too will these family structures, but for now, the polygamy belt remains the world’s most enduring stronghold of plural marriage.