How many types of potatoes are there?

According to The United States Potato Board, seven types of potatoes are commonly enjoyed by consumers: russet, long white, round white, fingerlings, red, yellow and blue or purple. The potato industry refers to them as table-stock varieties.

These popular potato varieties are sold in supermarkets and farmer's markets, and they are suitable for meals served in homes and restaurants. The russet is the most popular variety due to its nice size and hearty texture. This type has brown skin and white flesh and can be used in a wide variety of recipes that call for potatoes. Russets can be boiled, baked or roasted.