Foster is a city located in Oklahoma. With a 2020 population of 168, it is the 460th largest city in Oklahoma and the 17181st largest city in the United States. Foster is currently growing at a rate of 1.20% annually and its population has increased by 4.35% since the most recent census, which recorded a population of 161 in 2010. Spanning over 16 miles, Foster has a population density of 11 people per square mile.
The average household income in Foster is $82,514 with a poverty rate of 19.31%. The median rental costs in recent years comes to - per month, and the median house value is $145,800. The median age in Foster is 44.8 years, 44.1 years for males, and 48.5 years for females. For every 100 females there are 101.4 males.