Arlington is a city located in Massachusetts. Arlington has a 2020 population of 45,147. Arlington is currently declining at a rate of 0.00% annually and its population has increased by 5.38% since the most recent census, which recorded a population of 42,844 in 2010. Arlington reached it's highest population of 45,147 in 2018.
The average household income in Arlington is $138,305 with a poverty rate of 5.36%. The median rental costs in recent years comes to $1,645 per month, and the median house value is $609,800. The median age in Arlington is 41 years, 40.2 years for males, and 41.8 years for females. For every 100 females there are 87.0 males.