Allen is a city located in Oklahoma. With a 2020 population of 916, it is the 231st largest city in Oklahoma and the 10686th largest city in the United States. Allen is currently declining at a rate of -0.76% annually and its population has decreased by -1.72% since the most recent census, which recorded a population of 932 in 2010. Allen reached it's highest population of 941 in 2014. Spanning over 1 miles, Allen has a population density of 1,034 people per square mile.
The average household income in Allen is $48,553 with a poverty rate of 26.03%. The median rental costs in recent years comes to $667 per month, and the median house value is $68,700. The median age in Allen is 44.8 years, 40.8 years for males, and 46.9 years for females. For every 100 females there are 88.3 males.