Cabezón de Cameros, a municipality in La Rioja, Spain, with a population of only 24 (2005), is one of the 10 least populated municipalities in this region, and one of the 100 least populated of Spain, as a whole. In 2001, the population was 21, and in 1991, 32. Cabezón de Cameros ranks fourth in Spain with respect to the male:female population ratio (19:5). Its surface is 12 km² and its population density, 1,75 p/km². Its geographic coordinates are: latitude, 42° 11' N, longitude: 2° 31' W, altitude: 923 meters.