Complex sentence: A Census County Division (CCD) is a subdivision of a county that is a relatively permanent statistical area established cooperatively by the United States Census Bureau and state and local government authorities.
Split into simpler sentences: A Census County Division (CCD) is a subdivision of a county used by the United States Census Bureau for the purpose of presenting statistical data. A CCD is a relatively permanent statistical area delineated cooperatively by the Census Bureau and state and local government authorities.