[5] According to the United States Census Bureau, the city has a total area of 0.47 square miles (1.22 km2), all land.

28.6% of all households were made up of individuals, and 8.4% had someone living alone who was 65 years of age or older.

There were 432 housing units at an average density of 896.8 per square mile (346.3/km2).

25.4% of all households were made up of individuals, and 8.7% had someone living alone who was 65 years of age or older.

[12] For the fiscal year ending September 30, 2013, Cool Valley has General Revenue of $1,259,770, $652,979 or 55% of which came from fines and fees collected by its Municipal Court.

Using its population of 1,196 people from the 2010 Census, the Municipal Court collected $545.99 per person.

[13] In 2007 Express Scripts opened its new world headquarters on the grounds of the University of Missouri–St.

The company plans expansion to add another 1,500 employees over the next five years contingent on state and local tax incentives, with the new building a $56 mil.