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topojson / us-atlas

Pre-built TopoJSON from the U.S. Census Bureau.

Home Page:https://observablehq.com/@d3/u-s-map

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Connecticut planning regions

ekerstein opened this issue · comments

commented

Just wanted to raise this for awareness. The state of Connecticut has asked the census bureau to use their county equivalent planning regions instead of counties for reporting data. The names, shapes, and FIPS codes of the planning regions are different from the previously used counties.

I believe this is taking effect in 2024. I am already seeing planning regions in some census data reports. I noticed this because when I tried to map the FIPS codes of the new data, nothing showed up for the state of Connecticut (because the topojson files have the old county FIPS codes).

I suspect this may cause issues going forward. Although I'll let someone more knowledgeable weigh in on that. My understanding is that the old county FIPS codes will no longer be used, but I may be mistaken.

Here's a full announcement with related data like shape files: https://www.ctdata.org/blog/geographic-resources-for-connecticuts-new-county-equivalent-geography