Over 5,000 potato varieties exist globally, according to verified international databases. The EUROPOTATO database contains 6,199 registered varieties across European member states, while the CIP (International Potato Center) preserves over 4,000 cultivated potato accessions in their world collection.
The greatest concentration of diversity exists in the Andes mountains of South America, where Peru and Bolivia alone harbor 3,000-5,000 native potato varieties — the result of approximately 8,000-10,000 years of human selection by indigenous communities. This represents the greatest potato diversity on Earth, with individual farming communities in the Peruvian Andes cultivating 50-200 distinct varieties each.
Beyond the native Andean varieties, modern breeding programs continue expanding this diversity. China alone has approved 524 new potato varieties in the past decade, with 378 high-quality, disease-resistant varieties currently registered. North America and Europe contribute thousands more commercial and heritage varieties, including famous cultivars like Russet Burbank (1872), King Edward (1902), and Bintje (1910).
The CIP maintains the world's largest potato collection with over 7,000 total accessions, including both cultivated varieties and wild species relatives. This genetic diversity represents humanity's most important food security resource for the world's third most important food crop.