Tag Archives: reapportionment

Redistricting & Census 2020

.. most states will not have new redistricting plans until after Census 2020. Redistricting is the process of developing a redistricting plan for 2 or more areas (districts) disjoint and contiguous that are contained within the collective area of all districts based on some criteria. Redistricting is perhaps most familiar with regard to congressional districts and state legislative districts based on a set of demographic characteristics … but may apply to many other types of geographies. This post briefly reviews the Census 2020 & Redistricting Program.

Redrawing the Pennsylvania 115th Congressional Districts
The following views show Pennsylvania 115th Congressional Districts in their gerrymandered configuration (old) and the redrawn configuration (February 2018, new). Counties shown with light gray boundary. Click graphic for larger view. Expand browser window for best quality view.
Pennsylvania 115th CDs — Old

– View developed using CV XE GIS and related GIS project.

Pennsylvania 115th CDs — New, redrawn February 2018

– View developed using CV XE GIS and related GIS project.

Census 2020 & Redistricting Program
The ProximityOne Census 2020 & Redistricting Program enables participants to engage now in preparation for redistricting based on Census 2020. Use resources and processes provided by ProximityOne and the Congressional Districts/State Legislative Districts Group (CDSLD) .. participate in hands-on redistricting for your areas of interest. We start now using Census 2010 redistricting data, current congressional districts and state legislative districts, and related data/tools. Progressively, we move toward accessing the live Census 2020 redistricting data (March 2021). There is no cost to participate. See more about the Census 2020 & Redistricting Program at http://proximityone.com/cen2020_redistricting.htm. Join the CDSLD Group via this form to receive updates on the program and begin participation.

Data Analytics Web Sessions
Join me in a Data Analytics Web Session, every Tuesday, where we review access to and use of data, tools and methods relating to the Census 2020 redistricting Program. We review current topical issues and data — and how you can access/use tools/data to meet your needs/interests.

About the Author
Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data. Contact Warren. Join Warren on LinkedIn.

Tracking Language Use and the Decennial Census

Since 1790, the decennial census has been arguably the single most important U.S. geographic-demographic-economic statistical data resource. Data from these decennial censuses are in daily widespread use for analysis and decision-making. The companion TIGER/Line digital map database is the underlying geographic database enabling most Web browser maps. The TIGER data helped spawn the development of Geographic Information Systems (GIS) and visual data analysis.

This section illustrates use of the New York Times Chronicle tool to track language use relating to the decennial census. The Chronicle tool can be used to visualize language use in the New York Times news coverage throughout its history. The following graphics show results of using the Chronicle tool. There are additional features of the tool not shown here, notably lists of accessible NYT stories. Click graphics for larger view.

Decennial Census — all references

Decennial Census — 1960 through 2010

More about Census 2010

Redistricting – Reapportionment — a basic reason for the decennial census

More about congressional districtsstate legislative districts

Asian – Hispanic — race/origin; decennial census is source of most detailed data on these topics

More about Asian populationHispanic population

Integration – Segregation – Diversity — topics making widespread use of decennial census data

More about neighborhood diversityUSATODAY diversity analyses

American Community Survey — “rolling annual census” introduced in 2004

More about ACS 2013

Exactly how the decennial census has been used in stories cannot be effectively determined using the Chronicle tool. The decennial census lead-up and process of conducting and tabulation data is the basis of many stories. The use of decennial census data is yet another basis for stories.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data.