National Presidential Primary County and State Maps (1912-2020)

[Oldiesfreak1854]

Here are maps of what I have been able to find so far for past presidential primaries. I was wondering if anyone could help find more data or if they knew where more data could be found. I've scoured the internet in all the usual places, State SOS and Election board websites, ourcampaigns.com, and online blue books, not to mention sending out probably hundreds of emails, and this is what I've come up with.

I have every primary state back to 1968 filled in (with a couple of exceptions) along with as much caucus data as I can find (most blank states, at least back until 1968, are caucus states and therefore have limited data available). Before 1968, I have much more limited data, but this is very much a work in progress, and I am adding new data as often as I can.

Occasionally you will see a state without variations in shade, which means that I do not know anything more than who won the county. Three states on the 2008 Democratic primary map have results displayed by legislative district rather than by county as this is the only data available (Alaska, Kansas, and North Dakota). North Dakota is also displayed as such on the 2008 Republican primary and 2004 Democratic primary maps. All Alaska maps are in House Districts.

2012 Democratic:


2012 Republican:


2008 Democratic:


2008 Republican:


2004 Democratic:


2000 Democratic:


2000 Republican:


1996 Democratic:


1996 Republican:


1992 Democratic:


1992 Republican:


1988 Democratic:


1988 Republican:


1984 Democratic:


1980 Democratic:


1980 Republican:


1976 Democratic:


1976 Republican:


1972 Democratic:


1968 Democratic:


1964 Democratic:


1964 Republican:


Some older maps:

1952 Republican:


1948 Republican:


1924 Republican:


1920 Republican:


1916 Republican:


1912 Democratic:


1912 Republican:

Where did you get the county maps?  I'd also love to have a simpler version.

[Oldiesfreak1854]

Where do you get all these state precinct maps from?  Dave's Redistricting?

[Oldiesfreak1854]

Where do you get all these state precinct maps from?  Dave's Redistricting?

I generally try to find shapefiles based on the current maps; it's easiest to do it close to the election you want to map.

The shapefiles sometimes need to be edited to fit the results; the Wisconsin ward results merged about 3,000 wards (just under half), so I took a ward shapefile from the WI legislature's website and merged a ton of wards together in ArcGIS.

Where can you find shapefiles?  And where can you find map of civil divisions?

[Oldiesfreak1854]

^ The Census Bureau has a good shapefile archive.

Is there any way I can convert those to PNG or JPG?

[Oldiesfreak1854]

Is there any way to get those OH, IL, and WI maps with boundaries outlined?

[Oldiesfreak1854]

Suburban Philadelphia by municipality:

Is there any way I could get a statewide municipal map for PA like this?