Onset is a city located in Massachusetts. Onset has a 2020 population of 824. Onset is currently declining at a rate of 0.00% annually and its population has decreased by -47.62% since the most recent census, which recorded a population of 1,573 in 2010. Onset reached it's highest population of 1,573 in 2010.
The average household income in Onset is $45,807 with a poverty rate of 29.37%. The median rental costs in recent years comes to $1,252 per month, and the median house value is $227,600. The median age in Onset is 50.5 years, 39.8 years for males, and 51.8 years for females. For every 100 females there are 87.7 males.