Starominskaya is a rural locality located in the Krasnodar Krai region of Russia. It serves as the administrative center of the Starominsky District.
According to census data, the population of the settlement has remained relatively stable over recent decades. The 2010 census recorded a population of 29,809, following figures of 30,072 in 2002 and 30,743 during the 1989 Soviet census.