Priargunsk is an urban locality located in Russia. It serves as the administrative center of the Priargunsky District within the Zabaykalsky Krai region.
According to census data, the population of the city has remained relatively stable over several decades. The 2010 census recorded a population of 7,388 residents, following figures of 8,260 in 2002 and 7,954 during the 1989 Soviet census.