From Ethnologue (http://www.ethnologue.com/language/fuc):
Alternate Names: Peul, Peulh, Pulaar Fulfulde
Population: 2,740,000 in Senegal (2006). Population total all countries: 3,691,000.
Location: Fulbe Jeeri and Toucouleur mostly in Senegal river valley; upper Casamance Region, Fulacunda, west of Kolda to Gambia river headwaters. Also in Gambia, Guinea, Guinea-Bissau, Mali, Mauritania.
Language Status: (Educational). Recognized language (2001, Constitution, Article 1).
Classification: Niger-Congo, Atlantic-Congo, Atlantic, Northern, Senegambian, Fula-Wolof, Fula, Western
Dialects: Fulacunda (Fulakunda, Fulkunda), Toucouleur (Fulbe Jeeri, Haalpulaar, Pulaar, Tokilor, Tukolor, Tukulor).
Language Development: Literacy rate in L1: 10%–30%. Literacy rate in L2: 15%–25%. New media. Radio programs. Grammar.
Writing: Arabic script, Maghribi and Naskh styles. Latin script.