- Region I (1): Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
- Region II (2): New Jersey, New York, Puerto Rico, Virgin Islands
- Region III (3): Delaware, District of Columbia, Maryland, Pennsylvania, Virginia, West Virginia
- Region IV (4): Alabama, Florida, Georgia, Kentucky, Mississippi, North Carolina, South Carolina, Tennessee
- Region V (5): Illinois, Indiana, Michigan, Minnesota, Ohio, Wisconsin
- Region VI (6): Arkansas, Louisiana, New Mexico, Oklahoma, Texas
- Region VII (7): Iowa, Kansas, Missouri, Nebraska
- Region VIII (8): Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming
- Region IX (9): Arizona, California, Hawaii, Nevada, American Samoa, Guam, Northern Mariana Islands, Trust Territory of the Pacific Islands
- Region X (10): Alaska, Idaho, Oregon, Washington
List of NCIL Regional Representatives
