How many people get croup every year?

Croup, primarily affecting children aged 6 months to 3 years, affects about 3% to 5% of young children annually. In the United States, this translates to approximately 600,000 to 1 million cases each year. The incidence can vary based on seasonal viral outbreaks, particularly during the fall and winter months. Most cases are mild and can be managed at home, though some may require medical attention.