agam regency () is a regency of west sumatra, indonesia. it has an area of 2,232.30 km² and a population of 454,853 at the 2010 census and 476,536 at the 2015 census; by mid 2019 this had risen to 493,665. the capital is lubuk basung. bukittinggi city is surrounded by this regency but is not administratively included in it.