Tule Island

Headreach Island is a small island in the Sacramento–San Joaquin River Delta, in northern California. A naturally-formed island existing in a complex with Tule Island to the southeast and Fern Island to the northwest, it was used for farming as late as the 1920s. While several proposals for real estate development on the island were made in the late 20th century, it now consists mostly of marsh and submerged land. Black rails live on the island.

Spud Island is a small island of the San Joaquin River, located in the Sacramento–San Joaquin River Delta in northern California. It was once used to farm onions; while it is no longer used for agriculture, it remains inhabited. In the late 20th century it was the site of a county park, which offered camping, fishing and swimming amenities free of charge.

McDonald Island is an island in the Sacramento-San Joaquin River Delta, 53 km (33 mi) south of Sacramento. The 2,400 ha (5,900-acre) island is bounded on the north by San Joaquin River, on the west by Middle River and Latham Slough, and on the south by Empire Cut. It appears unlabeled on a 1913 United States Geological Survey map of the area, and on a 1952 USGS map as "McDonald Tract".It is in San Joaquin County, California, and managed by Reclamation District 2030.

Hog Island is an island in the San Joaquin River, and is one of many islands which constitute the Sacramento–San Joaquin River Delta. It was used for agriculture in the early 20th century, but has now mostly become marsh or submerged land; it remains a spot for fishing, particularly halibut and striped bass.

Acker Island (also known as Lost Isle) is a small island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California. Its coordinates are 37°59′51″N 121°26′56″W, and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981. It appears on a 1952 USGS map of the area.

The Rindge Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and managed by Reclamation District 2037. Its coordinates are 38°01′20″N 121°26′05″W, and the United States Geological Survey measured its elevation as −3 ft (−0.91 m) in 1981. It appears on a 1952 USGS map of the area.

King Island is an island in the north Sacramento-San Joaquin River Delta, twenty kilometres east of Antioch, and twenty kilometres west of Stockton. The 1,300 ha (3,200-acre) island is bounded on the north by White Slough, on the east by Bishop Cut, on the south by Disappointment Slough, and on the west, Honker Cut. It is in San Joaquin County, and managed by Reclamation District 2044. It appears on a 1952 United States Geological Survey map of the area.

Vulcan Island (also known as Shipyard Island) is a small island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California. Its coordinates are 37°59′21″N 121°24′22″W, and the United States Geological Survey measured its elevation as 7 ft (2.1 m) in 1981. It appears on a 1952 USGS map of the area.

Little Mandeville Island is a small, mostly submerged island in the San Joaquin River delta, in California. It is part of San Joaquin County, and its coordinates are 38.0104776°N 121.5649522°W / 38.0104776; -121.5649522 (Little Mandeville Island). In 1994, 376 acres (152 ha) of former farmland was inundated with water after a levee broke.

Bacon Island is an island in the Sacramento-San Joaquin River Delta, twenty kilometres east of Antioch, and twenty kilometres west of Stockton. The 2,200 ha (5,400-acre) island is bounded on the west by Old River, on the north by Connection Slough, on the east by Middle River, and Woodward Island Canal on the south. It is in San Joaquin County, and managed by Reclamation District 2028. It appears on 1913 and 1952 United States Geological Survey maps of the area.

The Jones Tract is an island containing Lower Jones Tract and the Upper Jones Tract in the Sacramento-San Joaquin River Delta, fifteen kilometres west of Stockton. The 4,900 ha (12,000 acres) island is bounded on the north by Empire Cut, on the northeast by Whiskey Slough, on the southeast by Trapper Slough, and on the west, Middle River. The tracts are bifurcated by the parallel running Mokelumne Aqueduct, West Lower Jones Road, and a railroad originally built by the Achison Topeka and Santa Fe Railroad, which now carries freight trains of the BNSF Railway and Amtrak California's San Joaquin. It is in San Joaquin County, and managed by Reclamation District 2039. It appears on 1913 and 1952 United States Geological Survey maps of the area.

The Shima Tract is an island in the Sacramento–San Joaquin River Delta. It is part of San Joaquin County, California, and managed by Reclamation District 2115. Its coordinates are 38°01′40″N 121°23′06″W, and the United States Geological Survey measured its elevation as 0 ft (0 m) in 1981. It appears on a 1952 USGS map of the area.The Shima Tract was owned by (and takes its name from) George Shima, a businessman and farmer who at one point produced 85% of California's potato crop.