Stamford is a city located in Fairfield County Connecticut. With a 2020 population of 129,302, it is the 3rd largest city in Connecticut (after and ) and the 217th largest city in the United States . Stamford is currently declining at a rate of -0.13% annually but its population has increased by 5.43% since the most recent census, which recorded a population of 122,643 in 2010. Stamford reached it's highest population of 129,880 in 2017. Spanning over 52 miles, Stamford has a population density of 3,437 people per square mile.
The average household income in Stamford is $140,870 with a poverty rate of 9.16%. The median rental costs in recent years comes to $1,812 per month, and the median house value is $532,700. The median age in Stamford is 36.9 years, 35.7 years for males, and 38.6 years for females.