3 to 6 inch fish has to be a river where they spawn at, If not then a stocked impoundment. Elkton - Im guessing your fishing the coves of the Elk River or the Chesapeake Bay.
(This is total speculation because I have no idea where Elkton is except on a map).
At any rate the larger fish migrate out and the schoolies stay until they reach maturity around 3 years old and 20 inches or so.
My advice is to go to the MD DNR site, go over the regulation pages and find out when the trophy season starts. It will also provide reports and give you a better idea of whats going on and when.