At that time, Tun Saban had moved to Upper Patani and stayed at Beredung Budi. He then moved to Belum Forest in Hulu Perak, founded a village at a place called Relap Hati, and became the chief of the peoples in Belum Forest.[citation needed]
For sometime until the 19th century, a good part of this district was under the sovereignty of Siam, as part of the old Malay Kingdom of Reman. The area then under Thai control included what is today Gerik, Pengkalan Hulu (Kroh), Kerunai, the Belum forest and the Temenggor Lakes. The capital of Reman was near Pengkalan Hulu.[6]
In 1882, the border between the British protected state of Perak and the Siamese vassal state of Reman was delimited at Bukit Nasha, some 5 km south of Gerik town.[citation needed]
The present-day border, part of the longer Malaysia–Thailand border, was finalised in 1909, when the districts of Pengkalan Hulu, Kerunai, Belukar Semang, Belum and the present-day Temenggor Lakes were transferred to the Federated Malay States. The British also gained control of Perlis, Kedah, Kelantan and Terengganu.[citation needed]
Administrative divisions
Hulu Perak District is divided into 10 mukims and three district councils, which are:[7]
The municipalities of Pengkalan Hulu and Lenggong are autonomous subdistricts (daerah kecil).
Demographics
Historical population
Year
Pop.
±%
1991
81,636
—
2000
82,551
+1.1%
2010
89,926
+8.9%
2020
95,076
+5.7%
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