How many stars on the American flag who among them is a city state?

The American flag has 50 stars, each representing one of the 50 states. Among these states, Washington, D.C., is often referred to as a city-state because it is a federal district and not part of any state. However, it does not have a star on the flag; the 50 stars represent the states only. Therefore, no star on the flag represents a city-state.