Redistricter
@Redistricter
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The most powerful mapping tool for visualizing the data that shapes America. Built by @Colin_d_m
NYC
Joined February 2019
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You can now instantly generate Wikipedia-style district results by county
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I've added an "election builder" feature so you can generate your own elections based on demographic data
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After months of work, my redistricting visualization project is live at !
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If Michigan voted like Mississippi (R+42)
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It's possible to draw a congressional district in Arizona (777k people) that had a population of only 17k in 1990
In 1990 the Near South Side of Chicago was 88% black. Today it's 28% black.
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This summer I'm launching a district builder application that's been in the works for a long time now
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This hypothetical congressional district in Miami went from voting to the left of New Jersey to voting to the right of Wyoming in 6 years
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New Square, in Rockland County, NY, might have the most bizzare voting record in America of any neighborhood.
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I did it, I'm taking the semester off to build Redistricter. Thanks to all of my subscribers for supporting me to this point!
So here's my dream: I want to take a semester off from college to work on this full time and see where I can take it. This wasn't something I had considered until I saw how many people subbed to the beta in the past 2 days.
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The DC and Boston metro systems are sometimes discussed like they're similar to NYC's metro but they're far less popular. Residents in DC/Boston mostly commute by car except for in a few neighborhoods in the city core.
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The vote density precinct overlay is finally released to Redistricter!
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By popular demand: I've added a tool to shift election results.
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The 2024 election by congressional district if 2016-2020 trends continue and Biden wins by the same margin
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While we're all waiting for New York to release statewide 2022 results, I've added 2022 data to NYC.
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I've added this little demo of the election shifter to the landing page to help people understand what it does
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A teaser for my next big project: thousands of datasets viewable for the entire country all at once. With no lag.
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I've added the 2023 Kentucky Gubernatorial election to Redistricter!
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The precinct update is out! You can now view 2016, shift, 2024 guess, and 2028 guess results by precinct.
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I've added 2022 and 2023 election data to Pennsylvania!
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You can now export your maps with circles indicating the vote margin for each county
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California's 41st house district is a uniquely bizarre district that's worth watching in 2024. (🧵)
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Forsyth County, Georgia in 1990 was 99% white and known as a Sundown County.
Today Forsyth County is 1/3 non-white and home to several majority asian neighborhoods.
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I've added 2024 GOP primary data to South Carolina. It's the first 2024 election dataset added to Redistricter but it certainly won't be the last!
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What a winning Democratic/independent coalition in Utah could look like (D+2)
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I've added five 2022 elections to Michigan, including the abortion referendum.
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Here's an example of how congressional maps can be compact, minimize county splitting, and VRA compliant while still being gerrymandered.
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In 1990 the Near South Side of Chicago was 88% black. Today it's 28% black.
1990-2010 demographic data is coming soon. This project has taken far longer than I expected but I can finally see the light at the end of the tunnel!
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Redistricter data additions 🧵
I've added a new marriage dataset that shows marriage/partnership rates and the rate of gay/straight marriages.
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In 2000 UT Austin narrowly voted for Bush, but in 2022 Abbott only won 7.6% of the vote. Why did Republicans completely fall out of favor with students in the past 22 years?
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You can make maps like this instantly in Redistricter (no GIS required!)
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Mapped out Iowa's 2022 congressional races and added them to Wikipedia
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Here's how my redistricting analyzer website looks so far. It's a work in progress. Let me know what you think.
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Biden+5
You can now instantly generate Wikipedia-style district results by county
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2022 midterms prediction but using my neutral maps. 210D-225R (24 flip D and 36 flip R).
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It's not often talked about how dense NYC's suburbs and satellite cities are
Staten Island is more than twice as dense as the city of Atlanta.
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This is roughly the smallest possible congressional district at only ~5mi^2 and 777,000 people. It's nearly twice as dense as Manhattan as a whole.
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I've added a district analysis tool to view the partisanship of any map at a glance
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My democratic map is only one seat away from a 2/3 majority by partisan lean. Where do you think that extra seat could come from?
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Imported maps now split precincts automatically, so imported districts are now accurate to the census-block level.
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In 2020 Illinois Democrats passed a brutal 14D-3R gerrymander but it's possible they could've gone further. A map like this would have likely resulted in only 2 GOP seats in 2022.
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If a Texas independence referendum were held and public opinion lined up with this poll the results would've looked something like this
(green for independence and blue against)
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Even if Ohio Republicans had drawn Marcy Kaptur into a much redder R+14 District she might've still narrowly won.
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I've added Louisiana and it has 50 elections, referendums, and primaries from 2006-2022!
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Redistricter is now the first and only place to get precinct-level 2022 Nevada election data!
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Texan democrats could break the gerrymander while still losing Texas if trends accelerated in their favor. In this scenario Democrats win 21/38 seats with <50% of the vote.
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I've added an option to show only the precincts within a selected district
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London has an incredible amount of religious diversity but neighborhoods are also very segregated along religious lines
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Redistricter can now recalculate district stats for custom elections
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I've added election data from Obama's narrow victory in Indiana
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The Canarsie and Prospect Heights neighborhoods in Brooklyn, which were almost all-white and all-black respectively in 1990, have completely reversed their racial makeup in the past 30 years.
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Recently, NY Democrats drew new house seats but opted to not gerrymander the maps. Had they gone down the route of maximizing democratic seats they could have easily drawn a 23D-3R map like this one (2022 gov data).
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Roughly the richest congressional district you can make in Texas (avg household income $187,480).
Romney+38
Trump+18
Trump+7
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Redistricter data additions 🧵
I added these election result indicators to the data selection screen
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This got me curious so here's a map of the delta between white VAP and Trump votes by Block Group in a few places
The most "resistlib" precinct in Illinois
(largest delta between Trump 2020 vote % and White voting-age population %)
Evanston, Cook County
91.9% White VAP
6.2% Trump
+85.7% delta
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New landing page is up at . Also, the old Redistricter isn't gone it's just been moved to .
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Update: I unplugged my hard drive without ejecting it and lost 3 days of progress 🥲
1990-2010 demographic data is coming soon. This project has taken far longer than I expected but I can finally see the light at the end of the tunnel!
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On the flip side of that, a cluster of neighborhoods in Detroit lost 2/3 of their population, over 100,000 people, between 1990 and 2020.
It's possible to draw a congressional district in Arizona (777k people) that had a population of only 17k in 1990
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Miami is one of the most demographically unique cities in America. More Miamians speak Spanish (70%) than fluent English (61%).
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I've added South Carolina with 23 elections from 2008-2022!
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Redistricter's data library has been expanded significantly. Here's what's new 👇
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I’ve added 57 new elections to California from 2002-2022. This includes every presidential, gubernatorial, house, and senate race from 2002 onwards and 19 ballot referendums.
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Geoshaper has launched and it's free for everyone to use at !
Development of my new Shapefile Conversion app is going well. GIS people: let me know if this is something you'd be interested in using!
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East Austin neighborhoods completely flipped their racial demographics between 1990 and 2020.
White neighborhoods became latino and latino/black neighborhoods became white.
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I've added 22 more elections to North Carolina from 2008-2014
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Here's a perfect illustration on why media markets matter:
- Missouri media markets
- 2018 auditor election in SW Missouri
- 2018 auditor-2020 president trend-adjusted shift
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Introducing a new Redistricter user interface! It comes with new ease-of-use features to make mapping easier and more intuitive.
Details below 👇
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I've added 7 different 2010 elections to Georgia, bringing to total number of Georgia elections in Redistricter to 68.
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I've uploaded the proposed NY commission map to Redistricter with 2022 election data
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The richest possible congressional district in America
Income per capita: $143,350
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