Spencer is a city located in Massachusetts. Spencer has a 2020 population of 5,705. Spencer is currently declining at a rate of 0.00% annually and its population has increased by 0.09% since the most recent census, which recorded a population of 5,700 in 2010. Spencer reached it's highest population of 5,821 in 2017.
The average household income in Spencer is $64,499 with a poverty rate of 16.25%. The median rental costs in recent years comes to $862 per month, and the median house value is $222,000. The median age in Spencer is 45 years, 41 years for males, and 48.1 years for females. For every 100 females there are 122.5 males.