Udayapur District (Nepali: उदयपुर जिल्लाListen , is one of 14 districts of Province No. 1 of eastern Nepal. The district, with Triyuga as its district headquarters, covers an area of 2,063 km2 and in 2001 had a population of 287,689, in 2011 of 317,532.
The administrative divisions of Nepal are subnational administrative units of Nepal. The first level of country subdivisions of Nepal are the Provinces. Each province is further subdivided into districts, and each district into municipalities and rural municipalities. Before 2015, instead of provinces, Nepal was divided into developmental regions and administrative zones.
Triyuga is an urban municipality out of 4 urban municipalities located in the Udayapur district of the Province No. 1 of Nepal. Gaighat is the headquarter of the municipality. According to the 1991 Nepal census, it had a population of 55,291. According to the 2011 Nepal census, Triyuga had 87,557 inhabitants. It is divided into 16 wards. Triyuga Municipality was established on B.S. Chaitra 13, 2053. It was named after Triyuga River. A river which flows through the town. Triyuga is the 3rd largest municipality in Nepal and 1st largest in Province No. 1 in term of size (area). The total area of the municipality is 547.43 square kilometres (211.36 sq mi)
Patarasi is a rural municipality located in Jumla District of Karnali Province of Nepal.
Aaptar was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Rautamai Rural Municipality after reconstruction of administration in Nepal.
Basabote was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Limchungbung Rural Municipality after reconstruction of administration in Nepal.
Jalpachilaune is a populated place located in Triyuga municipality of Udayapur District in Province No. 1 of Nepal. At the time of 2011 Nepal census it had a population of 3,864 people living in 807 individual households.
Jogidaha is a populated place located in Triyuga municipality of Udayapur District in Province No. 1 of Nepal. At the time of 2011 Nepal census it had a population of 6,665 people living in 1,451 individual households.
Khanbu is a populated place located in Triyuga municipality of Udayapur District in Province No. 1 of Nepal. At the time of 2011 Nepal census it had a population of 4,350 people living in 782 individual households.
Laphagaun was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Rautamai Rural Municipality after reconstruction of administration in Nepal.
Nametar was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Rautamai Rural Municipality after reconstruction of administration in Nepal.
Panchawati is a village in, and headquarter of, Udayapurgadhi rural municipality in Udayapur District in Province No. 1 of south-eastern Nepal. At the time of the 1991 Nepal census it had a population of 6,580 people living in 1223 individual households.
Pokhari was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Rautamai Rural Municipality after reconstruction of administration in Nepal.
Rauta was a village development committee in Udayapur District in the Sagarmatha Zone of Eastern Development Region of Nepal. It became part of Rautamai Rural Municipality after reconstruction of administration in Nepal.
Saune is a populated place located in Triyuga municipality of Udayapur District in Province No. 1 of Nepal. At the time of 2011 Nepal census it had a population of 2,678 people living in 518 individual households.
Chaudandigadhi is a municipality in Udayapur District of Province No. 1 in Nepal that was established on 10 March 2017 by merging the former Village development committees Chaudandi, Sithdipur, Hadiya and Sundarpur with the former municipality Beltar Basaha. At the time of the 2011 Nepal census, the localities out of which Chaudandigadhi would be formed had a joint population of 48,574 people living in 10,519 individual households. It is surrounded by Belka Municipality in the east, Triyuga in the west, the districts of Khotang and Bhojpur in the north and Sunsari District in the south.
Udayapurgadhi Rural Municipality is a rural municipality in Udayapur district of Province No. 1 in Nepal. There are 4 rural municipalities in Udayapur district. There are 8 wards in this municipality. According to 2011 census of Nepal, the total population of the municipality is 30,731 and total area is 269.51 km². The headquarter of the municipality is in Panchawati
Rautamai Rural Municipality is a rural municipality in Udayapur district of Province No. 1 in Nepal. There are 4 rural municipalities in Udayapur district. There are 8 wards in this municipality. According to 2011 census of Nepal, the total population of the municipality is 23,481 and total area is 204 km². The headquarter of the municipality is in Bhuttar
Limchungbung (earlier:Sunkoshi) is a rural municipality in Udayapur district of Province No. 1 in Nepal. There are 4 rural municipalities in Udayapur district. There are 5 wards in this municipality. According to 2011 census of Nepal, the total population of the municipality is 11,992 and total area is 106.8 km². The headquarter of the municipality is in Baraha
Tapli Rural Municipality is a rural municipality in Udayapur district of Province No. 1 in Nepal. There are 4 rural municipalities in Udayapur district. There are 5 wards in this municipality. According to 2011 census of Nepal, the total population of the municipality is 14,567 and total area is 119. km². The headquarter of the municipality is in Rupatar
