https://www.census.gov/library/reference/code-lists/ansi.html
01: Alabama
02: Alaska
04: Arizona
05: Arkansas
06: California
08: Colorado
09: Connecticut
10: Delaware
11: District of Columbia
12: Florida
13: Georgia
15: Hawaii
16: Idaho
17: Illinois
18: Indiana
19: Iowa
20: Kansas
21: Kentucky
22: Louisiana
23: Maine
24: Maryland
25: Massachusetts
26: Michigan
27: Minnesota
28: Mississippi
29: Missouri
30: Montana
31: Nebraska
32: Nevada
33: New Hampshire
34: New Jersey
35: New Mexico
36: New York
37: North Carolina
38: North Dakota
39: Ohio
40: Oklahoma
41: Oregon
42: Pennsylvania
44: Rhode Island
45: South Carolina
46: South Dakota
47: Tennessee
48: Texas
49: Utah
50: Vermont
51: Virginia
53: Washington
54: West Virginia
55: Wisconsin
56: Wyoming
64: Federated States of
Micronesia
66: Guam
69: Commonwealth of the
Northern Mariana
Islands
72: Puerto Rico
78: U.S. Virgin Islands
Null/missing