
| Local Union 551 Inside Counties |
| Selecting
county displays that county's state map. |
Select
% of area for jurisdiction description. |
||
| County | Population | Sq. Miles | Percent |
| Del Norte County, CA | 27507 | 1007.81 | 100% |
| Humboldt County, CA | 126518 | 3572.48 | 100% |
| Lake County, CA | 58309 | 1257.96 | 100% |
| Marin County, CA | 247289 | 519.8 | 100% |
| Mendocino County, CA | 86265 | 3508.97 | 100% |
| Sonoma County, CA | 458614 | 1575.88 | 100% |