Sijunjung Regency formerly known as Sawahlunto Sijunjung, is an inland regency in West Sumatra, Indonesia. The Regency covers an area of 3,150.58 km2, and it had a population of 201,823 at the 2010 census and 235,045 at the 2020 Census; the official estimate as of mid-2023 was 243,709 - comprising 123,380 males and 120,330 females. The regency seat is the town of Muaro Sijunjung. The regency was created from the former Sawahlunto Regency, after the districts comprising Sawahlunto town became a city, administratively separated from the regency, which was then renamed.