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2020 Census | Response Outreach Area Mapper (ROAM)

The US Census Bureau has created the Response Outreach Area Mapper (ROAM), an application to view the Low Response Score (LRS), a percentage of households in a census tract predicted to NOT respond to the Decennial Census. It also provides easy access to valuable housing, demographic, and socioeconomic data. 

Using Dane County, Wisconsin as an example, here are 10 steps to help libraries get started using ROAM.



2. VIEW YOUR COUNTY- Use the dropdown to select Search by County or zoom-in to your County.

3. ADD STREETS – Select the Basecamp Gallery icon and then select Streets.

4. ADD LIBRARIES – Select the Add Data icon, enter Wisconsin, and ADD Libraries and Branches, Wisconsin 2019, Feature Service by Wisconsin_DPI. Explore other layers.

5. VIEW LEGEND- Select the Legend icon to understand how color is being assigned to the Low Response Score (LRS).

6. CHANGE LAYER DISPLAY – Select the Layer List icon and select select the 3 dots next to Low Response Score by 2017 Census Tract to change the transparency (brightness). Layers can also be turned on or off.

7. SELECT A CENSUS TRACT – Select a census tract on the map to view the Low Response Score (LRS), ACS estimates, and FCC High-Speed Connection rates.

8. SHOW ATTRIBUTE TABLE – Select the down arrow to view the attribute table. Adjust map view so all areas of interest are displayed. Attributes are defined in the ROAM Data Dictionary.

9. SORT/FILTER/EXPORT ATTRIBUTE DATA – Any column can be sorted by clicking on the column label. The data can also be filtered and exported to a csv for further analysis. Here is an example of how to filter data for multiple counties. Be sure geometry for the filtered data is displayed on the map or turn off “Filter by Map Extent”.

10. LEARN MORE - ROAM has numerous resources including a Quick Tips Guide and a Recorded Webinar: census.gov/roam. You can also select the Information icon.



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