Sites

Sites by US Census Division (n=246)

Division 1

New England

(n=24): CT, MA, ME, NH, RI, VT

Division 2

Mid Atlantic

(n=47): NJ, NY, PA

Division 3

East North Central

(n=33): IL, IN, MI, OH, WI

Division 4

West North Central

(n=15): IA, KS, MN, MO, ND, NE, SD

Division 5

South Atlantic

(n=28): DC, DE, FL, GA, MD, NC, SC, VA, WV

Division 6

East South Central

(n=7): AL, KY, MS, TN

Division 7

West South Central

(n=18): AR, LA, OK, TX

Division 8

Mountain

(n=10): AZ, CO, ID, MT, NM, NV, UT, WY

Division 9

Pacific

(n=22): AK, CA, HI, OR, WA

International

 

(n=42)