Is there any ready-made table containing land area for U.S. counties? NHGIS provides shapefiles but I cannot find any table.
NHGIS doesn’t have a data table with land area for US counties, but the county shapefiles from 2010 to the present do provide that information. There is a field called “AREALAND” in the shapefile, and it contains the land area for each county (in square meters). There is also a field called “AREAWATER” that contains the water area for each county.
Unfortunately, the county shapefiles for 1790-2000 do not have an land area field in them.