Raigad District (formerly Kolába district), is a district in the Konkan division of Maharashtra, India. The district was renamed to Raigad after the fort that was the first capital of the former Maratha Empire, which in turn was renamed from its earlier name - Rairi. The fort is located in the interior regions of the district, in dense forests on a west-facing spur of the Western Ghats of Sahyadri Range. In 2011 the district had a population of 2,634,200, compared to 2,207,929 in 2001. The name was changed in the regime of Chief Minister Antule on 1st Jan 1981. In 2011 urban dwellers had increased to 36.91% from 24.22% in 2001.