Hello CTPP-News: Well, the newest news is that Census 2020 PL94-171 data is re-scheduled for release this coming Thursday, August 12th. Hope everyone is ready. I did a lot of messing around with the R package TIGRIS this past spring. I’m not sure why I didn’t share it at that time, but here it is now. Hope it helps. https://www.rdocumentation.org/packages/tigris/versions/1.4.1 <https://www.rdocumentation.org/packages/tigris/versions/1.4.1> from the author’s page: tigris is an R package that allows users to directly download and use TIGER/Line shapefiles (https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line… <https://www.census.gov/geographies/mapping-files/time-series/geo/tiger-line-file.html>) from the US Census Bureau. Here is Kyle Walker’s March 2021 lecture on “Spatial Analysis of US Census Data” on youtube.com <http://youtube.com/>. Watch it! https://youtu.be/GqC1HjAKui4 <https://youtu.be/GqC1HjAKui4> TIGRIS is working and ready for Census 2020 geographies!! So when the PL94-171 data is available this coming Thursday, I’m expecting a lot of people to get really busy with it! (Refer back to my 7/23/21 post regarding the R package PL94171. My next example might be some stitching the TIGER files with the PL 94-171 demographic data!) I’m attaching two of my R scripts that test a ton of the capability of TIGRIS. I’m not “attaching” any demographic data to the geographic layers, just yet. The purpose here is to get a hold of these TIGER/Line shapefiles, and get ready for newer (or older) census data from the decennial census or the American Community Survey. My Part I script includes the following examples: # 1.1 -- County Boundaries in California (Detailed TIGER/Highest Resolution) # 1.2 -- Exporting SHP files to a local computer drive # 2 -- County Boundaries in California (Medium Resolution) # 3 -- County Boundaries in California (Lowest Resolution) # 4.1 -- Tract Boundaries for One County # 4.2 -- Tract Boundaries for One County, Multiple Census Years (1990-2020) # 5 -- Tract Boundaries for Multiple Counties in a State # 6 -- Block Group Boundaries for Multiple Counties in a State # 7 -- Block Boundaries for Multiple Counties in a State # 8 -- Place Boundaries within a State # 9 -- PUMA Boundaries within a State # 10 -- Consolidated Statistical Areas in the USA # 11 -- Core-Based Statistical Areas in the USA # 12 -- Congressional Districts in the USA, single state, and filtering states # 13 -- Urbanized Areas in the USA # 14 -- State Legislative Districts (Upper/Lower House) for a State # 15 -- Zip Code Tabulation Areas, Selected for a State and within state # 16 -- State Boundaries in the USA My Part II script includes the following examples: # 1 -- Roads for Counties, Multiple Counties within State # 2 -- Primary & Secondary Roads within a State # 3 -- Rails for the USA # 4.1 -- Water Areas for Multiple Counties within a State # 4.2 -- Water Lines for Multiple Counties within a State # 5 -- Point & Area Landmarks within a State That’s all for now. Happy Saturday afternoon, and IPA Day! Chuck Purvis, Hayward, Califorina Attachments: