Alcohol Treatment Centers City of Poquoson, VA Find local alcohol treatment centers in City of Poquoson, VA. Click on one of the areas listed below to locate alcohol detox facilities in Virginia near you. Blacksnake Island Cow Island Earness La Tierra Marsh Island Moores Oak Island Odd Plumtree Island Poquoson Powhatan Place Rivergate Sheep Island Whalebone Island