A folio number is a unique identifier assigned to each parcel in Miami-Dade County. It is commonly used by the property appraiser, tax collector, and other county agencies to track land and improvements.
Unlike a street address, a folio number never changes, making it one of the most reliable ways to identify a specific parcel during property research.
Research tools such as EarthPlat often allow searching by folio number, which can speed up property research significantly.