| Ryer Island | |
| Image Alt: | An aerial photograph of an island covered in farmland and surrounded by rivers. |
| Pushpin Map: | United States Sacramento Delta#USA California#USA |
| Coordinates: | 38.2436°N -121.631°W |
| Location: | Northern California |
| Waterbody: | Sacramento-San Joaquin River Delta |
| Area Acre: | 11700 |
| Length Ft: | --> |
| Width Ft: | --> |
| Coastline Ft: | --> |
| Country: | United States |
| Country Admin Divisions Title: | State |
| Country Admin Divisions Title 1: | County |
| Country Admin Divisions 1: | Solano |
Ryer Island should not be confused with Ryer Island (Suisun Bay).
Ryer Island is an island in the Sacramento-San Joaquin River Delta surrounded by Miner Slough and Steamboat Slough at their confluence with the Sacramento River, 6.5 miles north-northeast of Rio Vista. It is in Solano County, California, and managed by Reclamation District 501. The 4750ha island is named in honor of a California pioneer, Dr. Washington M. Ryer, and his family. A map prepared at the time of statehood shows the area divided by the west fork of the Sacramento River, with the western half identified as Priest Island and the eastern half identified as Sutter Island.
The California Department of Transportation (Caltrans) operates two vehicle ferry services to the island, connecting the following state highways:
Highway 220 then terminates at Highway 84 on Ryer Island, while the latter leaves the island north on a bridge, and towards West Sacramento.