Wisconsin County Codes
| Adams | A2 | Florence | F5 | Marathon | M3 | Rusk | R8 |
| Ashland | A8 | Fond du Lac | F6 | Marinette | M4 | St. Croix | S2 |
| Barron | B3 | Forest | F7 | Marquette | M5 | Sauk | S3 |
| Bayfield | B4 | Grant | G6 | Menominee | M54 | Sawyer | S4 |
| Brown | B7 | Green | G7 | Milwaukee | M6 | Shawano | S5 |
| Buffalo | B8 | Green Lake | G8 | Monroe | M7 | Sheboygan | S6 |
| Burnett | B9 | Iowa | I5 | Oconto | O2 | Taylor | T3 |
| Calumet | C3 | Iron | I6 | Oneida | O5 | Trempealeau | T7 |
| Chippewa | C4 | Jackson | J2 | Outagamie | O8 | Vernon | V4 |
| Clark | C5 | Jefferson | J4 | Ozaukee | O9 | Vilas | V5 |
| Columbia | C6 | Juneau | J8 | Pepin | P4 | Walworth | W2 |
| Crawford | C7 | Kenosha | K4 | Pierce | P5 | Washburn | W3 |
| Dane | D3 | Kewaunee | K5 | Polk | P6 | Washington | W4 |
| Dodge | D5 | La Crosse | L2 | Portage | P7 | Waukesha | W5 |
| Door | D6 | Lafayette | L3 | Price | P8 | Waupaca | W6 |
| Douglas | D7 | Langlade | L4 | Racine | R2 | Waushara | W7 |
| Dunn | D8 | Lincoln | L5 | Richland | R5 | Winnebago | W8 |
| Eau Claire | E2 | Manitowoc | M2 | Rock | R6 | Wood | W9 |
State Codes
| Alabama | 3970 | Montana | 4250 |
| Alaska | 4370 | Nebraska | 4190 |
| Arizona | 4330 | Nevada | 4350 |
| Arkansas | 4000 | New Hampshire | 3740 |
| California | 4360 | New Jersey | 3810 |
| Colorado | 4310 | New Mexico | 4320 |
| Connecticut | 3780 | New York | 3800 |
| Delaware | 3830 | North Carolina | 3900 |
| District of Columbia | 3850 | North Dakota | 4170 |
| Florida | 3930 | Ohio | 4080 |
| Georgia | 3920 | Oklahoma | 4020 |
| Hawaii | 4380 | Oregon | 4290 |
| Idaho | 4270 | Pennsylvania | 3820 |
| Illinois | 4100 | Rhode Island | 3770 |
| Indiana | 4090 | South Carolina | 3910 |
| Iowa | 4150 | South Dakota | 4180 |
| Kansas | 4200 | Tennessee | 3960 |
| Kentucky | 3950 | Texas | 4030 |
| Louisiana | 4010 | Utah | 4340 |
| Maine | 3730 | Vermont | 3750 |
| Maryland | 3840 | Virginia | 3880 |
| Massachusetts | 3760 | Washington | 4280 |
| Michigan | 4110 | West Virginia | 3890 |
| Minnesota | 4140 | Wisconsin | 4120 |
| Mississippi | 3980 | Wyoming | 4260 |
| Missouri | 4160 |