Mapping Thrift Stores vs. Median Household Income in San Francisco

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I used data from OpenStreetMap for thrift stores (labeled as such, or as selling secondhand goods) and mapped it against income data in San Francisco. Somewhat surprisingly, no strong spatial patterns emerged as thrift stores are in areas of many income levels rather than clustering in high or low income areas as one might expect. Perhaps thrift stores are more centered around high foot traffic areas in the city. Beyond the analysis, I also took the opportunity to contribute back to the community by updating several outdated thrift store entries in OpenStreetMap.
