Nandurbar is an administrative district in the northwest corner (Khandesh Region) of Maharashtra state in India . On 1 July 1998 Dhule was bifurcated as two separate districts now known as Dhule and Nandurbar. The district headquarters are located at Nandurbar city. The district occupies an area of 5035 km² and has a population of 1,311,709 of which 15.45% were urban (as of 2001).

Nandurbar district is bounded to the south and south-east by Dhule district, to the west and north is the state of Gujarat, to the north and north-east is the state of Madhya Pradesh. The northern boundary of the district is defined by the great Narmada river.

Ranjana Sonawane of TembhlI village and rushil in Nandurbar district became first citizen of India to get twelve (12) digit Unique Identification on 29 September 2010. The unique identification or Aadhaar is ambitious project of the central government of India to provide unique identification to its billion plus citizens.

Before 1 July 1998 Nandurbar was part of the larger Dhule district. Nandurbar, Dhule and Jalgaon districts formed what was known as the Khandesh district. Dhule was known as the west Khandesh whereas Jalgaon was known as the east Khandesh. So, much of history applicabe to Khandesh and Dhule, is applicable to Nandurbar. Nandurbar is also known as Nandanagri as the king Named Nandaraja was the ruler of this territory. The ancient name of this region was Rasika. It is bounded on the east by Berar (ancient Vidarbha), on the north by the Nemad district (ancient Anupa) and on the south by the Aurangabad (ancient Mulaka) and Bhir (ancient Asmaka) districts. Later the country came to be called as Seunadesa after king, Seunchandra of the Early Yadava dynasty, who ruled over it. Subsequently its name was changed to Khandesh to suit the title Khan given to the Faruqi kings by Ahmad I of Gujarat.

As of 2001 India census,Nandurbar District had a population of 1,309,135, being 50.62% male and 49.38% female. Nandurbar District has an average literacy rate of 46.63%: male literacy is 55.11%, and female literacy is 37.93%.

Languages spoken include Ahirani, a Kandeshi tongue with approximately 780 000 speakers, similar to Marathi and Bhili.; and Bareli Pauri, a Bhil language with approximately 175 000 speakers, written in the Devanagari script.

In 2006 the Ministry of Panchayati Raj named Nandurbar one of the country’s 250 most backward districts (out of a total of 640).It is one of the twelve districts in Maharashtra currently receiving funds from the Backward Regions Grant Fund Programme (BRGF).

The Climate of Nandurbar District is generally Hot and Dry. As the rest of India Nandurbar District has three distinct seasons; Summer, Monsoon/Rainy and the Winter season.

Summer is from March to mid of June. Summers are usually hot and dry. During the month of May the summer is at its peak. Temperatures can be as high as 45° Celsius during the peak of Summer. The Monsoon sets in during the mid or end of June. During this season the weather is usually humid and hot. The northern and western regions receive more rainfall than the rest of the region. The average rainfall is 767 mm through the district.Winter is from the month of November to February. Winters are mildly cold but dry.

According to the 2011 census Nandurbar district has a population of 1,646,177, roughly equal to the nation of Guinea-Bissau or the US state of Idaho.This gives it a ranking of 304th in India (out of a total of 640).The district has a population density of 276 inhabitants per square kilometre (710/sq mi).Its population growth rate over the decade 2001–2011 was 25.5%.Nandurbar has a sex ratio of 972 females for every 1000 males, and a literacy rate of 64.38%.