Demographic D.9 Proportion of non-English speaking population
Data Source
U.S. Census 2000, Geolytics software. Census variables used: ‘Persons 5-17 years old who speak Spanish and speak English not well or not at all' (SPNENY0N), ‘Persons 18-64 years old who speak Spanish and speak English not well or not at all' (SPNENO0N), ‘Persons 65+ years old who speak Spanish and speak English not well or not at all' (SPNENE0N), ‘Persons 5-17 years old who speak Asian language and speak English not well or not at all' (ASNENY0N), 'Persons 18-64 years old who speak Asian language and speak English not well or not at all' (ASNENO0N), ‘Persons 65+ years old who speak Asian language and speak English not well or not at all' (ASNENE0N), ‘Persons 5-17 years old who speak other language and speak English not well or not at all' (OTNENY0N), ‘Persons 18-64 years old who speak other language and speak English not well or not at all' (OTNENO0N), ‘Persons 65+ years old who speaks other language and speak English not well or not at all' (OTNENE0N). Summary File 3, Table P19.Map and table created by San Francisco Department of Public Health, Environmental Health Section using ArcGIS software.
Map data is presented at the level of the census tract. The map also includes planning neighborhood names, in the vicinity of their corresponding census tracts.
Table data is presented by planning neighborhood. Planning neighborhoods are larger geographic areas then census tracts. SF DPH used ArcGIS software and a 'centroids within' methodology to convert census tracts to geographic mean center points. We then assigned census tracts to planning neighborhoods based on the spatial location of those geographic mean center points and calculated the planning neighborhood totals for the table.
Detailed information regarding census data, geographic units of analysis, their definitions, and their boundaries can be found in the HDMT at the following links:
http://www.thehdmt.org/etc/Geographic_Units_of_Analysis.September_2009.pdf
http://www.thehdmt.org/data_map_methods.php
Explanation and Limitations
Data is for population aged five and older.