Jersey Island


About Jersey Island 

Jersey Island is owned and operated by Ironhouse Sanitary District. The island is located between Oakley and Bethel Island on the San Joaquin River.

Ironhouse currently grows fodder crops such as hay and alfalfa on approximately 400 acres of farm fields on Jersey Island. The District is permitted to land apply biosolids on the farm fields. Biosolids are an organic, nutrient-rich soil amendment that are produced through the wastewater treatment process.

Reclamation District 830 is responsible for maintenance and levee restoration on Jersey Island. For more information, please visit the Reclamation District 830 webpage.

Jersey Island is located in Contra Costa County in the Sacramento-San Joaquin Delta region. The 3,520 acre island is bound to the west by the San Joaquin River, on the north by False River, on the northeast by Piper Slough, on the east of Taylor Slough and on the south by Dutch Slough.

The Delta Ferry Authority operates a vehicle ferry from Jersey Island to Bradford Island and Webb Tract. The ferry launch is accessible from Jersey Island via Ferry Road. For more information, please visit the Delta Ferry Authority webpage.

Ironhouse Sanitary District has opened Jersey Island to fishing at designated areas only and hiking along the Ted and Helen Halsey Trail.


Fishing is allowed by permit only.  For more information on obtaining your public use pass and current pricing, 

Visit the Fishing Page


Jersey Island is home to the Ted and Helen Halsey Trail. A parking pass is required for trail use. Access to the trail is via Ferry Road, which is closed when the ferry is not in operation. In such event, the trail will also be closed.

Electrical conductivity

Some residents have inquired about the electrical conductivity of the waters surrounding Jersey Island. That information, updated periodically, can be found at the following link: Electrical Conductivity Around Jersey Island [PDF]