| County | FIPS |
|---|---|
| Adams County | 38001 |
| Barnes County | 38003 |
| Benson County | 38005 |
| Billings County | 38007 |
| Bottineau County | 38009 |
| Bowman County | 38011 |
| Burke County | 38013 |
| Burleigh County | 38015 |
| Cass County | 38017 |
| Cavalier County | 38019 |
| Dickey County | 38021 |
| Divide County | 38023 |
| Dunn County | 38025 |
| Eddy County | 38027 |
| Emmons County | 38029 |
| Foster County | 38031 |
| Golden Valley County | 38033 |
| Grand Forks County | 38035 |
| Grant County | 38037 |
| Griggs County | 38039 |
| Hettinger County | 38041 |
| Kidder County | 38043 |
| LaMoure County | 38045 |
| Logan County | 38047 |
| McHenry County | 38049 |
| McIntosh County | 38051 |
| McKenzie County | 38053 |
| McLean County | 38055 |
| Mercer County | 38057 |
| Morton County | 38059 |
| Mountrail County | 38061 |
| Nelson County | 38063 |
| Oliver County | 38065 |
| Pembina County | 38067 |
| Pierce County | 38069 |
| Ramsey County | 38071 |
| Ransom County | 38073 |
| Renville County | 38075 |
| Richland County | 38077 |
| Rolette County | 38079 |
| Sargent County | 38081 |
| Sheridan County | 38083 |
| Sioux County | 38085 |
| Slope County | 38087 |
| Stark County | 38089 |
| Steele County | 38091 |
| Stutsman County | 38093 |
| Towner County | 38095 |
| Traill County | 38097 |
| Walsh County | 38099 |
| Ward County | 38101 |
| Wells County | 38103 |
| Williams County | 38105 |