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Districts With -2.5% Deviation (Or Greater)

March 4, 2011
tags: redistricting
by Brett

Since it is simply not possible to draw every district the same exact size, mapmakers are given a certain amount of room in each direction known as deviation. When a district has a positive deviation, it has more people than the average district. (The GOP tackled that here). And the reverse is true with negative deviation districts, which is what I looked at here. For this piece, I only looked at districts with a -2.5 percent deviation or greater. At -2.5 percent, a district has about 620 less people than the proposed average.

Here is what I found:

View this document on Scribd

To view this in a sortable spreadsheet, you can view it in Google Docs here.

To make a long story short, of 39 such districts, 29 are drawn for or held by Democrats with 10 drawn for or held by Republicans. By putting less people in a district you can obviously create more districts which is what the Democrats have done in their favor here to make up for major loses primarily in the Delta. Also, 20 of these are majority black districts.

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