South Lancaster is a city located in Massachusetts. South Lancaster has a 2020 population of 1,588. South Lancaster is currently declining at a rate of 0.00% annually and its population has decreased by -16.16% since the most recent census, which recorded a population of 1,894 in 2010. South Lancaster reached it's highest population of 1,988 in 2011.
The average household income in South Lancaster is $81,673 with a poverty rate of 5.54%. The median rental costs in recent years comes to $831 per month, and the median house value is $283,900. The median age in South Lancaster is 56.8 years, 58.3 years for males, and 56.4 years for females. For every 100 females there are 100.5 males.