Allen is a city located in Collin County Texas. With a 2020 population of 109,715, it is the 37th largest city in Texas and the 280th largest city in the United States . Allen is currently growing at a rate of 1.90% annually and its population has increased by 30.23% since the most recent census, which recorded a population of 84,246 in 2010. Allen reached it's highest population of 109,715 in 2021. Spanning over 26 miles, Allen has a population density of 4,156 people per square mile.
The average household income in Allen is $131,204 with a poverty rate of 4.59%. The median rental costs in recent years comes to $1,487 per month, and the median house value is $303,300. The median age in Allen is 37.9 years, 35.8 years for males, and 39.5 years for females.