Simplify the following text for a Grade 4 native English-speaking person.
Original: According to the United States Census Bureau , the city has a total area of 2.9 square miles ( 7.6 kmÂ ) , all of it land .
Simplified: The United States Census Bureau says the city has a total area of 2.9 square miles ( 7.6 kmÂ ) . All of it is land .