Inflatable jumping castles, also known as bounce houses or inflatable slides, come in various sizes and designs, which determine their capacity to hold people. The number of people that an inflatable jumping castle can hold can vary depending on factors such as the size of the unit and the age and size of the individuals using it. Here are some general guidelines for different sizes of inflatable jumping castles:

1 Small Size: Small inflatable jumping castles are typically designed for younger children and can accommodate around 4 to 6 children at a time. These units are usually smaller in dimensions and have a lower weight capacity.

2 Medium Size: Medium-sized inflatable jumping castles are larger and can typically hold around 8 to 10 children or a few adults. These units may have additional features like slides or obstacles and are suitable for a wider age range.

3 Large Size: Large inflatable jumping castles are designed to accommodate a higher number of people. They can hold approximately 12 to 15 children or a larger group of adults, depending on the specific design and dimensions of the unit.

It's important to note that these numbers are general estimates and can vary based on the specific manufacturer, model, and guidelines provided by the inflatable jumping castle's manufacturer. Always refer to the manufacturer's instructions and safety guidelines regarding weight limits, age restrictions, and maximum occupancy to ensure the safe and proper use of the inflatable jumping castle.