US Dept of Labor -- Bureau of Labor Statistics
According to the government the break down of the
four regions is:
WEST
AK, HI, WA, OR, CA, ID, NV, AZ, MT, WY, UT, CO, NM
MIDWEST
ND, SD, NE, KS, OK, MN, IA, MO, WI, IL, MI, IN, OH
NORTHEAST
ME, VT, NH, MA, RI, CT, NJ, NY, PA
SOUTH
DE, MD, DC, KY, WV, VA, AR, TN, NC, SC, TX, LA, MS, AL, GA, FL
Personally, I'd argue the Mid Atlantic should be a 5th region. It would take care of some to those questionable states like MD, DE, and DC.
Sigma Kappa currently has 107 collegiate chapters.
WEST-20
WA 2, OR 2, CA 12, NV 1, AZ 1, CO 2
MIDWEST-33
NE 1, KS 2, OK 1, IA 1, MO 7, IL 8, MI 6, IN 4, OH 6
NORTHEAST-18
MA 4, RI 1, CT 1, NJ 1, NY 2, PA 9
SOUTH-33
MD 1, DC 1, KY 5, WV 1, VA 5, AR 1, TN 5, NC 5, TX 4, LA 2, AL 1, GA 1, FL 1
edited-oops SC is now included in the South