Sintang is a city located within the Sintang Regency in the West Kalimantan province of Indonesia. The regency covers a total land area of 18,517.85 km2.
The region has seen steady population growth over recent decades. According to census data, the population was 364,759 in 2010 and reached 421,306 by 2020, with an official estimate of approximately 449,211 as of mid-2025.