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Mapping and address-search tools on data.census.gov demonstrated in webinar
Summary
The presenter demonstrated map tools (variable selection, base maps, boundaries, classes, selection shapes), the identify tool and GeoJSON download, and the address search (example: 4600 Silver..., 20746) and block-group identification for Alexandria (Block Group 3, Tract 2007.03).
In the webinar’s mapping portion, the Agency official demonstrated how to map specific table lines, change map variables and styles, and select geographies on the map. Using a veterans table as an example, the presenter chose the line for veterans who are high-school graduates and showed the map update across tracts in Manassas, VA. “You can tell that it's done so because it tells you it's high school graduates, that are veterans,” the presenter said while changing the map variable.
The presenter walked through map tools: base map choices (basic, detailed, none), boundary overlays (ZCTA, tracts, block groups) with distinct colors, break/class options (natural, quantile, equal interval, manual), and selection tools (box, circle, lasso) to assemble groups of geographies for analysis. The 'identify' tool was used to click a map feature and retrieve GEOID and geography metadata; the presenter also noted geographic boundary files are available for download in GeoJSON format.
In an address-search demonstration the presenter typed the Census Bureau’s Suitland address (entered as 4600 Silver ... 20746) and said the returned address card lists linked geography details (tract, block group, congressional district) that users can click to add to their search filters. In a separate example, the presenter searched for table B19013 (median household income), switched to ACS 5-year data to access block-group values, used the map to find Church Street in Alexandria and used identify to confirm Block Group 3 in Tract 2007.03.
The presenter also showed table-level tools such as citations (copyable text), an API query button to generate programmatic requests, and share/print/PDF options. The webinar closed with resources (tutorials, workshops) and an invitation to take a customer-satisfaction survey on data.census.gov.
