Níjar is a Spanish municipality in the province of Almería, Andalusia. It lies in the eastern part of Almería, in the Sierra de Alhamilla and the south-eastern Mediterranean coast, in the Campo de Níjar, near the Cabo de Gata-Níjar Natural Park. Níjar covers an area of 599.8 square kilometres, making it one of the most extended municipalities of Spain. Its population of 17,824 is mainly concentrated in the cities of Campohermoso, San Isidro, and Níjar.