Legislative districts of Agusan del Sur

The legislative districts of Agusan del Sur are the representations of the province of Agusan del Sur in the various national legislatures of the Philippines. The province is currently represented in the lower house of the Congress of the Philippines through its first and second congressional districts.
History.
Prior to gaining separate representation, areas now under the jurisdiction of Agusan del Sur were represented under the Department of Mindanao and Sulu (1917–1935) and Agusan (1935–1969).
Republic Act No. 4979, approved in a plebiscite held simultaneously with the 1967 elections, split the old Agusan Province into Agusan del Norte and Agusan del Sur and provided them each with a congressional representative. In accordance with Section 7 of R.A. 4979, Agusan del Sur first elected its separate representative starting in the 1969 elections.
Agusan del Sur was represented in the Interim Batasang Pambansa as part of Region X from 1978 to 1984, and returned one representative, elected at large, to the Regular Batasang Pambansa in 1984.
Under the new Constitution which was proclaimed on February 11, 1987, the province constituted a lone congressional district, and it elected its member to the restored House of Representatives starting that same year.
The approval of Republic Act No. 9508 on October 20, 2008 divided the province into two congressional districts, which elected their separate representatives starting in the 2010 elections.
Senatorial representation.
Agusan del Sur was represented in the Senate of the Philippines under the undivided province of Agusan through the 12th senatorial district of the Philippine Islands between 1916 and 1935. However, in 1935, all senatorial districts were abolished when a unicameral National Assembly was installed under a new constitution following the passage of the Tydings–McDuffie Act, which established the Commonwealth of the Philippines. Since the 1941 elections, when the Senate was restored after a constitutional plebiscite, all twenty-four members of the upper house have been elected countrywide at-large.
Congressional representation.
Agusan del Sur has been represented in the lower house of various Philippine national legislatures since 1987 through its first and second congressional districts.
Provincial board districts.
The municipalities of Agusan del Sur are represented in the Agusan del Sur Provincial Board, the Sangguniang Panlalawigan (provincial legislature) of the province, through Agusan del Sur's first and second provincial board districts.