Grain Valley is a city located in Missouri. With a 2020 population of 14,817, it is the 52nd largest city in Missouri and the 2323rd largest city in the United States. Grain Valley is currently growing at a rate of 1.86% annually and its population has increased by 15.27% since the most recent census, which recorded a population of 12,854 in 2010. Spanning over 6 miles, Grain Valley has a population density of 2,414 people per square mile.
The average household income in Grain Valley is $78,834 with a poverty rate of 6.29%. The median rental costs in recent years comes to $1,006 per month, and the median house value is $165,500. The median age in Grain Valley is 33.6 years, 33.1 years for males, and 34.9 years for females. For every 100 females there are 96.9 males.