If Your Neighborhood Is Full Of Pickup Trucks, You Might Be A Trump Voter, Says Stanford Algorithm

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If there are more pickup trucks in a neighborhood, there is an 82-percent chance it voted Republican, according to an algorithm developed by Stanford researchers.

If there are more pickup trucks in a neighborhood, there is an 82-percent chance it voted Republican, according to an algorithm developed by Stanford researchers.

Photo: Justin Sullivan/Getty Images Image 2 of 22

More sedans? There's an 88-percent the zip code voted Democratic, according to the research.

More sedans? There's an 88-percent the zip code voted Democratic, according to the research.

Photo: Doug Wilson/Getty Images Image 3 of 22 Check out how the West Coast’s 20 most populous counties compare when it comes to income inequality. The statistics presented here are drawn from the Census Bureau’s American Community Survey, as analyzed by the Robert Wood Johnson Foundation’s County Health Rankings & Roadmaps project.   less Check out how the West Coast’s 20 most populous counties compare when it comes to income inequality. The statistics presented here are drawn from the Census Bureau’s American Community Survey, as analyzed ... more Photo: Boston Globe/Boston Globe Via Getty Images Image 4 of 22 20. Snohomish County, Washington – Largest city: Everett –

Income of top 20 percent compared to bottom 20 percent: 3.9 times greater  – Household income, top 20 percent: $125,397 – Household income, bottom 20 percent: $31,873 less

20. Snohomish County, Washington – Largest city: Everett –

Income of top 20 percent compared to bottom 20 percent: 3.9 times greater  – Household income, top 20 percent: $125,397 – Household income, ... more

Photo: AP Image 5 of 22 19. Pierce County, Washington – Largest city: Tacoma –

Income of top 20 percent compared to bottom 20 percent: 4.1 times  

greater  – Household income, top 20 percent: $109,984 – Household income, bottom 20 percent: $27,092 less

19. Pierce County, Washington – Largest city: Tacoma –

Income of top 20 percent compared to bottom 20 percent: 4.1 times  

greater  – Household income, top 20 percent: $109,984 – Household income, bottom ... more

Image 6 of 22 18. Washington County, Oregon – Largest city: Hillsboro –

Income of top 20 percent compared to bottom 20 percent: 4.2 times  

greater  – Household income, top 20 percent: $123,403 – Household income, bottom 20 percent: $29,261 less

18. Washington County, Oregon – Largest city: Hillsboro –

Income of top 20 percent compared to bottom 20 percent: 4.2 times  

greater  – Household income, top 20 percent: $123,403 – Household income, ... more

Image 7 of 22 17. Ventura County, California – Largest city: Ventura –

Income of top 20 percent compared to bottom 20 percent: 4.4 times 

greater  – Household income, top 20 percent: $145,788 – Household income, bottom 20 percent: $33,342 less

17. Ventura County, California – Largest city: Ventura –

Income of top 20 percent compared to bottom 20 percent: 4.4 times 

greater  – Household income, top 20 percent: $145,788 – Household income, ... more

Photo: Juan Carlo, Associated Press Image 8 of 22 16. Riverside County, California – Largest city: Riverside –

Income of top 20 percent compared to bottom 20 percent: 4.6 times  

greater  – Household income, top 20 percent: $110,136 – Household income, bottom 20 percent: $23,981 less

16. Riverside County, California – Largest city: Riverside –

Income of top 20 percent compared to bottom 20 percent: 4.6 times  

greater  – Household income, top 20 percent: $110,136 – Household income, ... more

Image 9 of 22 15. San Mateo County, California – Largest city: Redwood City –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $189,081 – Household income, bottom 20 percent: $39,821 less

15. San Mateo County, California – Largest city: Redwood City –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $189,081 – Household ... more

Photo: Photo By David Baron/ Flickr CC Image 10 of 22 14. King County, Washington – Largest city: Seattle –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $147,984 – Household income, bottom 20 percent: $31,172 less

14. King County, Washington – Largest city: Seattle –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $147,984 – Household income, bottom ... more

Photo: GENNA MARTIN, SEATTLEPI.COM Image 11 of 22 13. San Bernardino County, California – Largest city: San Bernardino –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $104,151 – Household income, bottom 20 percent: $22,030 less

13. San Bernardino County, California – Largest city: San Bernardino –

Income of top 20 percent compared to bottom 20 percent: 4.7 times  

greater  – Household income, top 20 percent: $104,151 – ... more

Image 12 of 22 12. Orange County, California – Largest city: Santa Ana –

Income of top 20 percent compared to bottom 20 percent: 4.8 times  

greater  – Household income, top 20 percent: $150,875 – Household income, bottom 20 percent: $31,352 less

12. Orange County, California – Largest city: Santa Ana –

Income of top 20 percent compared to bottom 20 percent: 4.8 times  

greater  – Household income, top 20 percent: $150,875 – Household income, ... more

Photo: Mark Rightmire, MBI Image 13 of 22 Buy photo 10. Kern County, California – Largest city: Bakersfield –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $99,596 – Household income, bottom 20 percent: $20,251 less

10. Kern County, California – Largest city: Bakersfield –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $99,596 – Household income, ... more

Photo: Santiago Mejia, The Chronicle Buy this photo Image 14 of 22 9. Contra Costa County, California – Largest city: Martinez –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $158,866 – Household income, bottom 20 percent: $32,577 less

9. Contra Costa County, California – Largest city: Martinez –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $158,866 – Household income, ... more

Photo: Marc Crumpler Image 15 of 22 8. Sacramento County, California – Largest city: Sacramento –

Income of top 20 percent compared to bottom 20 percent: 4.9 times 

greater  – Household income, top 20 percent: $110,939 – Household income, bottom 20 percent: $22,652 less

8. Sacramento County, California – Largest city: Sacramento –

Income of top 20 percent compared to bottom 20 percent: 4.9 times 

greater  – Household income, top 20 percent: $110,939 – Household income, ... more

Image 16 of 22 7. San Diego County, California – Largest city: San Diego –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $128,741 – Household income, bottom 20 percent: $26,397 less

7. San Diego County, California – Largest city: San Diego –

Income of top 20 percent compared to bottom 20 percent: 4.9 times  

greater  – Household income, top 20 percent: $128,741 – Household income, ... more

Photo: Ron_Thomas/Getty Images Image 17 of 22 6. Multnomah County, Oregon – Largest city: Portland –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $108,001 – Household income, bottom 20 percent: $21,346 less

6. Multnomah County, Oregon – Largest city: Portland –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $108,001 – Household income, bottom ... more

Photo: Cacophony/Wikimedia Commons Image 18 of 22 Buy photo 5. Fresno County, California – Largest city: Fresno –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $94,590 – Household income, bottom 20 percent: $18,574 less

5. Fresno County, California – Largest city: Fresno –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $94,590 – Household income, bottom ... more

Photo: Santiago Mejia, The Chronicle Buy this photo Image 19 of 22 4. Santa Clara County, California – Largest city: San Jose –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $189,701 – Household income, bottom 20 percent: $37,478 less

4. Santa Clara County, California – Largest city: San Jose –

Income of top 20 percent compared to bottom 20 percent: 5.1 times  

greater  – Household income, top 20 percent: $189,701 – Household income, ... more

Image 20 of 22 Buy photo 3. Alameda County, California – Largest city: Oakland –

Income of top 20 percent compared to bottom 20 percent: 5.4 times  

greater  – Household income, top 20 percent: $153,092 – Household income, bottom 20 percent: $28,526 less

3. Alameda County, California – Largest city: Oakland –

Income of top 20 percent compared to bottom 20 percent: 5.4 times  

greater  – Household income, top 20 percent: $153,092 – Household income, ... more

Photo: Michael Macor, The Chronicle Buy this photo Image 21 of 22 2. Los Angeles County, California – Largest city: Los Angeles –

Income of top 20 percent compared to bottom 20 percent: 5.4 times  

greater  – Household income, top 20 percent: $119,375 – Household income, bottom 20 percent: $22,035 less

2. Los Angeles County, California – Largest city: Los Angeles –

Income of top 20 percent compared to bottom 20 percent: 5.4 times  

greater  – Household income, top 20 percent: $119,375 – Household ... more

Photo: Chris Pizzello, Associated Press Image 22 of 22 Buy photo 1. San Francisco County, California – Largest city: San Francisco –

Income of top 20 percent compared to bottom 20 percent: 7.1 times 

greater  – Household income, top 20 percent: $177,198 – Household income, bottom 20 percent: $24,946 less

1. San Francisco County, California – Largest city: San Francisco –

Income of top 20 percent compared to bottom 20 percent: 7.1 times 

greater  – Household income, top 20 percent: $177,198 – Household ... more

Photo: Lea Suzuki, The Chronicle Buy this photo If your neighborhood is full of pickup trucks, you might be a Trump voter, says Stanford algorithm 1 / 22 Back to Gallery

The trite stereotype that Trump voters drive pickups and Hillary supporters drive sedans might contain some truth, according to an artificial intelligence algorithm developed at Stanford University.

The researchers, who published their findings in Proceedings of the National Academy of Sciences this month, created a database of the cars in 200 U.S. cities by pooling millions of images from Google Street View and running it against voting and demographic data. The margin of error of the algorithm's predictions was small.

Their findings confirm what one may already infer from his or her surroundings.

"If there are more sedans, [a neighborhood] probably voted Democrat (88% chance), and if there are more pickup trucks, it probably voted Republican (82% chance)," the study found, using voting data from the most recent presidential election.

Unsurprisingly, the most popular car in San Francisco is the Toyota Prius.

Story continues below.

According to a new report by the Pew Research Center, the gap between Democrats and Republicans is larger than it has ever been before.

Media: WochIt Media

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Researchers say the algorithm has highly practical applications.

"These types of approaches will be most useful in places where it is very expensive to perform survey based census," said Timnit Gebru, a lead author of the paper.

Conducting a demographic survey or census is a costly, time-consuming business. The American Community Survey, conducted via door-to-door canvassing, costs taxpayers an annual $250 million, the paper claims.

Stanford's survey methods can complement such labor-intensive practices and also provide information on subjects as far-reaching as childhood education outcomes and the level of physical activity of a neighborhood's occupants.

"While the US has many resources to conduct such studies, there are other countries in the world where this is not the case," said Gebru. "Using publicly available data could allow countries to understand the distribution of income in different regions, or other demographic characteristics."

Cars are just one data point that can be analyzed.

Gebru explained, "While we used cars in this study, what we wanted to show was that such work is possible using publicly available images and computer vision."

You can read more about the algorithm methodology here

Michelle Robertson is an SFGATE staff writer. Email her at >mrobertson@sfchronicle.com or find her on Twitter at >@mrobertsonsf.

Source : http://www.sfgate.com/bayarea/article/Is-your-neighborhood-full-of-pickup-trucks-You-12393301.php

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