From a total population of 41,577, Chelsea has a median age of 31.5. The average age of males, in Chelsea, is 31.1 while the average age of females is 31.7. When you compare this to median age of Massachusetts, Chelsea is 7.8 years younger.
The median income of individuals, in Chelsea, is $21,523 while the average household income is $48,725. When comparing the median income of people living in Chelsea to the rest of Massachusetts, the average income in Chelsea is $14,918 less.