2000 Census blocks were analgamated and then joined to 2000 census demographics. All files were downloaded from the ESRI website: http://www.esri.com/data/download/census2000_tigerline/index.html. The original shapefile was reprojected from GCS_1983 to UTM_NAD 83 Zone 13N so that each census block's area could be calculated in square meters. A formula from the ArcMap Help was used in each census block's area calculation. Square meters were convereted to square miles, and finally people per square mile was computed.
