The economic impact of the Saint Louis Zoo is a measure of the amount of and the way that dollars associated with the Zoo circulate through the region. There are three levels of impact the St. Louis Regional Chamber & Growth Association considers when they develop these figures: the direct impact, the indirect business impact, and tourism and visitor spending impact. All three of these an be expressed in terms of annual flow of dollars or annual full-time jobs.

2012 Economic Impact
Full-time Employees 305
Part-time Employees 175
Seasonal Employees 767
Capital Improvement Jobs Created 229
Tourism Spending Jobs Created 625
Total Employment 2,101
Operating Expenses/Payroll $118,200,000
Capital Improvements $30,600,000
Tourism Spending $53,900,000
Total Economic Impact $202,700,000
2010 Total Economic Impact $187,500,000