Stillwater is a city located in Oklahoma. With a 2020 population of 50,941, it is the 9th largest city in Oklahoma and the 778th largest city in the United States. Stillwater is currently growing at a rate of 0.54% annually and its population has increased by 11.50% since the most recent census, which recorded a population of 45,688 in 2010. Spanning over 30 miles, Stillwater has a population density of 1,724 people per square mile.
The average household income in Stillwater is $55,880 with a poverty rate of 34.99%. The median rental costs in recent years comes to $813 per month, and the median house value is $171,700. The median age in Stillwater is 23.7 years, 23.6 years for males, and 23.7 years for females. For every 100 females there are 107.8 males.