Descriptive Title: Proportion of the population that is 17 year old or younger or 65 years old or older
Geographic Unit of Analysis: Census tract
|Proportion of youth and seniors (2010)|
|Neighborhood||% aged 17 years old or younger||% aged 65 years old or older|
|Financial District/South Beach||5.4%||18.7%|
|Golden Gate Park||0.6%||2.9%|
|South of Market||6.7%||12.0%|
|West of Twin Peaks||19.0%||18.0%|
2010 US Census.
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, which was calculated by assigning census block data to census tracts based on spatial location. The map also includes planning neighborhood names, in the vicinity of their corresponding census tracts.
Table data is presented by planning neighborhood. While planning neighborhoods are larger geographic areas than census tracts, census tracts do not always lie completely within a planning neighborhood. SFDPH used ArcGIS software and a dasymetric mapping technique to attribute Census block group data to residential lots. We then assigned residential lots to planning neighborhoods to calculate Census population totals within the neighborhoods.
Detailed information regarding dasymetric mapping, census data, geographic units of analysis, their definitions, and their boundaries can be found at the following links: