From the perspective of the adat, the district is governed separately by two different entities, where the mukims of Tampin Tengah, Repah, Keru and Tebong
comprises the semi-autonomous Tampin Adat Territory governed by the Tunku Besar of Tampin, and the luaks of Gemencheh, Ayer Kuning and Pasir Besar (which includes Gemas) are protectorates of the Luak of Johol.
Demographics
Historical population
Year
Pop.
±%
1991
72,295
—
2000
77,021
+6.5%
2010
82,165
+6.7%
2020
88,101
+7.2%
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