Low-lying and largely flat, Biffeche has Fulfulde (Fula or Peulh), Serer-Ndut, Wolof and Moor ethnic groups engaged in pasturing animals (mainly the Fulfulde) and irrigation-based agriculture. A tomato-paste factory imports and dilutes tomato paste for reshipment within Senegal. The population is mostly Muslim, but there is a Catholic community and traditional animists. There is a National Bird Park, the Parc du Djoudj, on Biffeche's northern borders.
In the 17th century the king was called the "Petit Brak" or "Little King", with his capital at Maka (as opposed to the "Grand Brak" or "Big King" of the former kingdom of Waalo with capital at NDer). Biffeche was nearly depopulated by repeated slaving raids from the north. At times Biffeche was tributary to Waalo, at other times allied with Bethio. In 1963, after a group of Serer people were transported to Biffeche from central Senegal, the people took the unusual step of choosing a foreign white American, Edward Schafer, as King Edward I of Biffeche. In 1998, he was succeeded by another, Ronald I of Biffeche, still reigning. The royal capital was moved to MBoubene in 1960. The chief town is Savoigne.