Analysis of information sources in references of the Wikipedia article "List of states and territories of the United States" in English language version.
... provides land, water and total area measurements for the 50 states, the District of Columbia, Puerto Rico and the Island Areas. The area measurements were derived from the Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER®) database. The boundaries of the states and equivalent areas are as of January 1, 2010. The land and water areas, ... reflect base feature updates made in the MAF/TIGER® database through August, 2010.
... provides land, water and total area measurements for the 50 states, the District of Columbia, Puerto Rico and the Island Areas. The area measurements were derived from the Census Bureau's Master Address File/Topologically Integrated Geographic Encoding and Referencing (MAF/TIGER®) database. The boundaries of the states and equivalent areas are as of January 1, 2010. The land and water areas, ... reflect base feature updates made in the MAF/TIGER® database through August, 2010.