Where do engineers live?

My roommate told me I ask strange questions.

The answer, it turns out, is mostly the west coast, the north east… and Colorado.  It’s a little bit too small to see on the map, but the area with the greatest concentration by far is Washington D.C.  The infographic below is based on the 2012 census data and gives the number of people with science or engineering degrees and related disciplines in each state per every 1000 residents (code is available here, on my GitHub page).  The states with darker shades have more engineers, adjusted by population, than the lighter ones.

I have a hunch that these rankings probably track pretty closely to the total number of college graduates in each state.  It would be interesting to compare these results to the number of STEM graduates adjusted by the total number of residents with bachelor degrees.  Just eyeballing it, it looks like for the most part the rankings seem to align relatively well with the GDP per capita in each state.  Same story with the Gross State Product, although some of the states with low population density (Wyoming, for example) have relatively high GDP per capita but low total economic output.  There are also some striking similarities to the 2012 election results.  States with lots of engineers love Obama I guess.

For the numerically minded, here is the complete list:

Rank State Degrees per 1000 citizens
1 District of Columbia 185.0796006
2 Massachusetts 127.2846981
3 Maryland 121.2871601
4 Colorado 113.5560991
5 Virginia 111.3983507
6 Connecticut 111.0297746
7 New Jersey 109.4002444
8 Vermont 108.1460046
9 New Hampshire 105.0934617
10 Washington 102.7639441
11 California 95.56312689
12 New York 95.20315491
13 Oregon 94.22922723
14 Minnesota 92.63596061
15 Rhode Island 90.65519065
16 Montana 89.5092659
17 Hawaii 88.65588624
18 Delaware 86.81776098
19 Maine 86.47737196
20 Illinois 86.14129653
21 Alaska 84.14647638
22 Pennsylvania 81.36954118
23 North Carolina 76.14895217
24 Wisconsin 75.66918193
25 Kansas 75.62430594
26 Florida 75.33509451
27 New Mexico 75.32202329
28 Michigan 73.70589973
29 South Dakota 73.19827606
30 Arizona 72.97864115
31 Georgia 72.15738012
32 Utah 71.74794221
33 North Dakota 71.34780049
34 Wyoming 71.24064772
35 Nebraska 71.07268464
36 Idaho 71.05623138
37 Texas 70.16535677
38 Missouri 68.5097832
39 Ohio 67.84525839
40 Iowa 66.10403514
41 South Carolina 66.02437642
42 Tennessee 62.29654104
43 Indiana 61.5813976
44 Nevada 60.00980359
45 Alabama 58.19042329
46 Oklahoma 57.78928051
47 Kentucky 57.38795091
48 Louisiana 56.40486313
49 Puerto Rico 54.62100934
50 West Virginia 51.78202208
51 Arkansas 51.70248657
52 Mississippi 47.18997413

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