The state in which the urban area is located was also added. Some smaller polygons that represent undeveloped areas within the urban area were removed and merged with the larger urban area. Military reservations were also removed. The representation of the entity in the data. There is no predefined set of valid urban area names.
Name represents the most significant place that is in the polygon.
The 2-letter abbreviation for the State in which the county is located. Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made by the USGS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty.