Realisticidealist's 2012 Precinct Map Thread

[RI]

I'm taking requests for precinct maps for counties. I am limited by time and the data available, however, so I make no guarantees. If anyone else desires, they can also post precinct maps in this thread. Here are three to start off with.

Franklin County, Ohio:



Clark County, Nevada:



Fulton, DeKalb, and Gwinnett counties, Georgia:

[RI]

Allegheny County, Pennsylvania (Pittsburgh):

[RI]

Anchorage Municipality, Alaska:



If I have time, I could probably do the rest of Alaska tomorrow.

[RI]

Pittsburgh itself voted 75.69% Obama, 22.37% Romney. The rest of the county voted 50.51% Obama, 48.20% Romney.

In 2008, Pittsburgh voted 75.23% Obama, 23.44% McCain, so it did swing to Obama this time. The suburbs rest of the county voted 51.23% Obama, 47.47% McCain, a slight swing to the Romney this time.

[RI]

May we see Vigo County, Indiana?

Vigo County, Indiana:

[RI]

Full Alaska precinct map. Very large:

[RI]

Great stuff. I have a few requests:

Centre, PA

Here's my rather low-tech rendition of Centre County:

[RI]

Full Hawaii precinct map:

[RI]

Niihau swung to Obama from McCain. McCain had 87.5% there (only 40 votes though).

[RI]

Vote in Niihau:

Obama 29 (47.54%)
Romney 27 (44.26%)
Johnson 3 (4.92%)
Stein 2 (3.28%)

Vote total went from 40 in 2008 to 61 in 2012.

[RI]

Niihau swung to Obama from McCain. McCain had 87.5% there (only 40 votes though).

Is the one in the center the same one McCain got; I know he got one in Laie and one in that general area but forget where exactly.

McCain won a precinct near Pearl Harbor. Romney did not win any in this area. It appears that the random other precinct Romney won had very few votes. It could just be a fluke.

[RI]

These are really impressive. What program do you use to make them?

ArcGIS for most of them.

[RI]

Franklin County, WA?

These are really impressive. What program do you use to make them?

ArcGIS for most of them.

A friendly cartographic suggestion - Adjust the transparency of your precincts layer to 40-60%, and add a reference layer behind it (Bing roads or combined roads/imagery would probably work best).

As an experiment, here is the Franklin County, WA map with a road basemap:



I'll leave it up to you guys to decide which you prefer.

[RI]

Here's my home county of Snohomish:

[RI]

Snohomish County R-74 (Gay Marriage) Map:



Snohomish County I-502 (Marijuana) Map:

[RI]

Where are you getting these shapefiles? I'll have access to the program next term, so I might be able to help out a bit.

Anywhere I can find them, basically. Finding the shapefile is one of the hardest parts. The best option is to find a county that has a GIS page where you can simply get the latest shapefiles, but that isn't always possible. Sometimes the state Auditor has them, sometimes somewhere else does. Google is a good place to start. If all else fails, there are the 2010 Census Tiger/Line shapefiles, but they may require editing to get up-to-date.

[RI]

Here's a map of Snohomish County comparing the Yes vote on gay marriage against the vote for Obama. The red areas are where Obama outperformed R-74 whereas blue areas gay marriage did better than Obama.



Unsurprisingly, Obama outperformed gay marriage along highway 99, an area with plenty of minorities (for Washington) and working class poor; in the poorer parts of north Everett; in downtown Marysville (which resembles areas near highway 99); and on the Tulalip Indian Reservation. Gay marriage outperformed Obama along the wealthier coastal precincts (similarly in Mill Creek), along highway 9 in Cathcart (?), some areas around Monroe and various lakes, and (for some reason) in the Stillaguamish Valley. My own precinct was one of the few that voted for Romney yet still supported gay marriage (and marijuana legalization).

[RI]

Jefferson and/or St. Louis counties in Missouri?

Obama only won 3 precincts in Jefferson County. Romney won the vast majority with >50% of the vote. St. Louis County would be more interesting, but I'll have to see if I can find an up-to-date shapefile.

[RI]

Also, RI, how are you doing the map overlay?  It looks amazing.  Nice, nice work!

Adjust the transparency of your precincts layer to 40-60%, and add a reference layer behind it (Bing roads or combined roads/imagery would probably work best).

I saw that, and I know how to do transparency, but I'm not sure how the overlay with Bing (I think that's what he's using) is done.

If you're in ArcGIS (I don't know about other programs), you can add a basemap by clicking down arrow on the yellow icon that you use to add files generally and selecting "add basemap". It's pretty quick.

[RI]

If you could do a precinct map of Virginia (narrow in on the swing areas if need be), that would be cool. VPAP.org has results by precinct. I have one of the entire state and one of Northern Virginia from 2008 so we could compare and contrast.

Unless you can find me the latest statewide shapefile that matches the election results, I'm afraid the best I can do is individual county (or perhaps groups of counties) maps.

[RI]

Well, I guess it's just johnbuterbaugh's lucky day. Here's the full precinct map for the state of Virginia. Seriously, I think I deserve to be made king or something for this.

[RI]

Northern Virginia with basemap:



Richmond:

[RI]

Yowza! You're the best, realistic.

Is there any way to post that image so that we can zoom in for greater detail?

If you click on the map, it gets rather large. You should be able to see everything fairly easily. Is there a specific area you want a zoomed in shot of?

[RI]

Full Delaware precinct map:

[RI]

When all the data is out, I'm planning on making statewide maps of Washington for President and R-74.

Prop 30 and MD gay marriage would be interesting in some areas. Not all the data is out yet though, especially for CA. If Berkeley gets their stuff together, I might be able to do a statewide CA map or two...