There are 50 stars in the blue rectangle on top left of the flag. These stars represent the 50 federal states. This has been the official flag since Hawaii became a.
Top quality 50 Star Flags are available for purchase from my friends at U.S. Flag The 27th flag of the United States became the official flag on July 4th.
The United States has 50 states, and there are 50 stars on the flag. This has been the case since July 4th, when the 50th star was added. The 50 States Song