Lowell is a city located in Middlesex County Massachusetts. With a 2020 population of 110,267, it is the 5th largest city in Massachusetts (after Boston, , , and ) and the 278th largest city in the United States . Lowell is currently declining at a rate of -0.33% annually but its population has increased by 3.52% since the most recent census, which recorded a population of 106,519 in 2010. Lowell reached it's highest population of in . Spanning over 15 miles, Lowell has a population density of 8,104 people per square mile.
The average household income in Lowell is $72,670 with a poverty rate of 18.95%. The median rental costs in recent years comes to $1,158 per month, and the median house value is $269,800. The median age in Lowell is 33.5 years, 32 years for males, and 34.9 years for females.