What age group has the greatest risk of suffering a playground injury? Children between the ages of five and nine are have the highest risk of suffering an injury on the playground. (2001-2013) By ProMatcher Staff Updated: 08/08/2016 Next Question Source: CDC Next Question Find Local Pros Free Actuaries Cost Estimates Related Questions How many injuries involve vacuum cleaners? How Many Forklift Injuries Occur Each Year? How many people are killed by wood chippers? How many flooring-related injuries occur each year? How many home fires occur each year?