| Total |
|
247 sites |
| Division 1 |
New England (CT, MA, ME, NH, RI, VT) |
24 sites |
| Division 2 |
Mid Atlantic (NJ, NY, PA) |
47 sites |
| Division 3 |
East North Central (IL, IN, MI, OH, WI) |
33 sites |
| Division 4 |
West North Central (IA, KS, MN, MO, ND, NE, SD) |
15 sites |
| Division 5 |
South Atlantic (DC, DE, FL, GA, MD, NC, SC, VA, WV) |
28 sites |
| Division 6 |
East South Central (AL, KY, MS, TN) |
7 sites |
| Division 7 |
West South Central (AR, LA, OK, TX) |
18 sites |
| Division 8 |
Mountain (AZ, CO, ID, MT, NM, NV, UT, WY) |
11 sites |
| Division 9 |
Pacific (AK, CA, HI, OR, WA) |
22 sites |
| International |
|
42 sites |
