The list is the FIPS codes of Oregon counties. All the FIPS codes are starting with 41.
| County | FIPS Code |
| Baker | 41001 |
| Benton | 41003 |
| Clackamas | 41005 |
| Clatsop | 41007 |
| Columbia | 41009 |
| Coos | 41011 |
| Crook | 41013 |
| Curry | 41015 |
| Deschutes | 41017 |
| Douglas | 41019 |
| Gilliam | 41021 |
| Grant | 41023 |
| Harney | 41025 |
| Hood River | 41027 |
| Jackson | 41029 |
| Jefferson | 41031 |
| Josephine | 41033 |
| Klamath | 41035 |
| Lake | 41037 |
| Lane | 41039 |
| Lincoln | 41041 |
| Linn | 41043 |
| Malheur | 41045 |
| Marion | 41047 |
| Morrow | 41049 |
| Multnomah | 41051 |
| Polk | 41053 |
| Sherman | 41055 |
| Tillamook | 41057 |
| Umatilla | 41059 |
| Union | 41061 |
| Wallowa | 41063 |
| Wasco | 41065 |
| Washington | 41067 |
| Wheeler | 41069 |
| Yamhill | 41071 |
All codes are cited from United States Department of Agriculture [28].