API STATE AND PSEUDO-STATE NUMERIC CODES
This list provides two-digit numeric codes for the onshore states of the
United States, the pseudo-states for offshore federal waters.
STATE CODES FOR UNITED STATES
State Code
Alabama 01
Arizona 02
Arkansas 03
California 04
Colorado 05
Connecticut 06
Delaware 07
District of Columbia 08
Florida 09
Georgia 10
Idaho 11
Illinois 12
Indiana 13
Iowa 14
Kansas 15
Kentucky 16
Louisiana 17
Maine 18
Maryland 19
Massachusetts 20
Michigan 21
Minnesota 22
Mississippi 23
Missouri 24
Montana 25
Nebraska 26
Nevada 27
New Hampshire 28
New Jersey 29
New Mexico 30
New York 31
North Carolina 32
North Dakota 33
Ohio 34
Oklahoma 35
Oregon 36
Pennsylvania 37
Rhode Island 38
South Carolina 39
South Dakota 40
Tennessee 41
Texas 42
Utah 43
Vermont 44
Virginia 45
Washington 46
West Virginia 47
Wisconsin 48
Wyoming 49
Alaska 50
Hawaii 51
PSEUDO-STATE CODES FOR U. S. OFFSHORE FEDERAL WATERS
Alaska Offshore 55
Pacific Coast Offshore 56
Northern Gulf of Mexico 60
Atlantic Coast Offshore 61