Another way to Use Dave’s Redistricting: Partisan Data for Maryland


So, hi, I’m Josh, this is my first diary.  I’m 17, and I got bored one day, so I decided, why not redistrict Maryland solely by 08 Vote.  In simpler terms, let’s use Dave’s, but instead, color-code into Very Dem (>70%), Dem (60-69%), Mod (49-59%), Rep (39-48%), and Very Rep (< 39% using Dark Blue, Light Blue, Purple, Light Red, and Red.  I have done that here, and I will do a county-by-county description of Maryland (I will post New York soon as well).  This will also help those who plan on trying redistricting with these states.  I will talk about each county, sorted by population

Montgomery-DC Suburbs

 One of the most liberal counties in the state.  The area bordering DC (Takoma Park, Chevy Chase, etc) is very, very liberal.  However, as one moves outward, the area gets more swingy, particularly along the Virginia border, such as in Poolesville.  However, further into the state, a line of dark blue runs through Gaithersburg and Rockville.The very North of the County, areas like Laytonville, are even somewhat conservative

Prince George’s-DC Suburbs

 A highly Black liberal area near DC, containing Univ. of Maryland and Bowie, it is almost entirely Very Dem, with exceptions in some of Bowie and Berwyn Heights.

Baltimore County-Baltimore Suburbs

 A county with extreme variance and quite a bit of polarization.  The area southwest of Baltimore is mainly Rep, and the area North of that (West of Baltimore) is much larger and Very Dem.  North of Baltimore is more Mod and Rep areas, while more North of that, near Pennsylvania, is a Very Rep area.  To the Northeast of Baltimore is a mixture of Rep and Very Rep areas, and to the East of Baltimore, along the Bay, is some highly conservative areas.  However, overall, this county is Moderate.

Baltimore, the City

 Enough said.  Highly liberal, sparsely populated southeast is Moderate. rest is very dem.

Anne Arundel-Annapolis

 Relatively Republican suburbs of Baltimore. The parts closer to the bay are more conservative than the inland areas, with Annapolis being an exception.  Some highly Republican areas in central county.

Howard-In between DC,Baltimore

A Democratic area, not as much as DC Suburbs or Baltimore, however.  The Eastern half ranges from moderate to Very Dem, while the Western half is more similar to the Panhandle.


 Except Brunswick (Moderate) and Frederick (Dem), this county is conservative near Virginia and very conservative further in-state.

Harford-Balt. Suburbs

 Our most Republican turf yet, very, very conservative.  More moderate along the water.  Contains conservative Bel Air Area.

Carroll-Balt. Suburbs

 Harford’s twin county.  Same comments, no areas along water, Westminster is less conservative, but still much more conservative than the state itself.


 Frederick’s Western twin.  Conservative near Virginia, moderate to liberal in Hagerstown, very conservative in panhandle.


 From the looks of it, it wouldn’t appear to be a Democratic county, but it has been for the past few elections. One of few counties Gore won while Clinton didn’t.  Northern half is very liberal, 1/3 Black.  Southern part, more conservative.  La Plata in middle is moderate.


 Balt. Exurbs and some of the E. Shore.  Elkton is moderate, the rest is Rep or Very Rep.


Mainly Moderate Republican.  I don’t know enough about it to say any more.

St. Mary’s

 Southwest Peninsula.  Republican, nothing too much of interest.


 An awesome name, contains Democratic Salisbury, moderate Fruitland.  Rest is very Republican.

Panhandle (Allegany, Garrett)

 You didn’t think I would list every county individuall, did you?  These two are identical, except population and the fact that Allegany has some Republican territory in Cumberland rather than solely Very Republican.

E. Shore (Worcester, Queen Anne’s, Talbot, Dorchester, Garrett, Caroline, Somerset, Kent)

 Almost all Rep or Very Rep, no clear trends.  Some of Southern end more Dem, probably due to Black vote?

Please comment if you find this interesting so I know if I can continue this.  

30 thoughts on “Another way to Use Dave’s Redistricting: Partisan Data for Maryland”

  1. Thanks for the map Josh, never would have though of using daves app this way.  It’s always interesting to see breakdowns of states and counties with these types of color gradients.

  2. Even though purple contains a 20% spread compared to the rest, which each have a 10% spread, it is much less common than you’d expect it to be.

  3. I have a few comments though:

    * Washington County borders West Virginia, not Virginia.

    * Cecil County is more Wilmington exurbs than Baltimore exurbs; it is the only part of Maryland classified by the Census Bureau as part of the Philadelphia metropolitan area.

    Again, this is a very nice job,

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