| NUMBER | NAME | COUNTY | LAT | LON |
| DE02 | Alty Island | Kent | 390751N | 0753012W |
| DE02 | Artificial Island | New Castle | 392957N | 0753224W |
| DE01 | Beach Plum Island | Sussex | 384800N | 0751045W |
| DE01 | Bell Memorial Chapel | Sussex | 383857N | 0753546W |
| DE01 | Big Bacon Island | Sussex | 383810N | 0750441W |
| DE01 | Big Cedar Island | Sussex | 383718N | 0750426W |
| DE01 | Big Nose Island | Sussex | 383920N | 0750434W |
| DE01 | Big Reedy Island | Sussex | 383840N | 0750448W |
| DE01 | Big Sheep Hammock | Sussex | 383004N | 0750433W |
| DE02 | Bombay Hook Island | Kent | 391710N | 0752606W |
| DE02 | Bread and Cheese Island | New Castle | 394223N | 0753821W |
| DE01 | Burton Island | Sussex | 383645N | 0750502W |
| DE01 | Burton Island | Sussex | 383507N | 0751353W |
| DE01 | Bush Island | Sussex | 383755N | 0750438W |
| DE01 | Bush Island | Sussex | 382856N | 0750354W |
| DE02 | Cherry Island | New Castle | 394346N | 0753101W |
| DE01 | Cherrybush Island | Sussex | 382847N | 0750355W |
| DE02 | Collins Island | Kent | 391634N | 0752830W |
| DE02 | Coopers Island | New Castle | 394305N | 0753425W |
| DE01 | Fenwick Island | Sussex | 382712N | 0750255W |
| DE01 | First Hill | Sussex | 385143N | 0751600W |
| DE02 | Georges Island | Kent | 391528N | 0752708W |
| DE01 | Gull Island | Sussex | 383610N | 0750518W |
| DE02 | Gum Island | Kent | 385223N | 0753905W |
| DE01 | Hay Hummock | Sussex | 385115N | 0751504W |
| DE02 | Holly Island | New Castle | 394632N | 0753437W |
| DE01 | Hoods Island | Sussex | 383846N | 0750846W |
| DE01 | Horse Island | Sussex | 384936N | 0751542W |
| DE01 | Horse Island | Sussex | 384022N | 0750806W |
| DE02 | Ice Cream Island | Kent | 385443N | 0752620W |
| DE01 | Island in the Narrows | Sussex | 383831N | 0750815W |
| DE01 | Island, The | Sussex | 383838N | 0753556W |
| DE02 | Island, The | New Castle | 392727N | 0753527W |
| DE01 | Island, The | Sussex | 383832N | 0753604W |
| DE02 | Joseph Island | Kent | 390837N | 0753042W |
| DE05 | Kelly Island | Kent | 391212N | 0752356W |
| DE05 | Kent Island | Kent | 391348N | 0752536W |
| DE02 | Kitts Hummock | Kent | 390609N | 0752409W |
| DE01 | Little Bacon Island | Sussex | 383824N | 0750500W |
| DE01 | Little Cedar Island | Sussex | 383730N | 0750431W |
| DE01 | Little Reedy Island | Sussex | 383833N | 0750429W |
| DE01 | Little Sheep Hammock | Sussex | 383010N | 0750509W |
| DE01 | Marsh Island | Sussex | 384009N | 0750739W |
| DE02 | Marshall Island | Kent | 391449N | 0752528W |
| DE01 | Middle Island | Sussex | 383709N | 0750542W |
| DE01 | Morgan Island | Sussex | 383822N | 0753620W |
| DE01 | Narrows, Island in the | Sussex | 383831N | 0750814W |
| DE02 | Needhams Island | Kent | 391428N | 0752746W |
| DE01 | Negro Island | Sussex | 385131N | 0751520W |
| DE01 | Oak Hill | Sussex | 385148N | 0751634W |
| DE04 | Pea Patch Island | New Castle | 393523N | 0753417W |
| DE01 | Petersfield Island | Sussex | 384913N | 0751323W |
| DE01 | Point of Cedars Island | Sussex | 382814N | 0750404W |
| DE01 | Prickley Pear Island | Sussex | 383338N | 0754109W |
| DE02 | Ragged Island | Kent | 391429N | 0752713W |
| DE02 | Rawley Island | Kent | 385805N | 0751926W |
| DE01 | Reedy Island | Sussex | 383000N | 0750349W |
| DE03 | Reedy Island | New Castle | 393055N | 0753348W |
| DE02 | Robs Island | New Castle | 392548N | 0753408W |
| DE02 | Rocks, The | New Castle | 392622N | 0753550W |
| DE01 | Sand Island | Sussex | 383615N | 0750548W |
| DE01 | Seal Island | Sussex | 382756N | 0750326W |
| DE01 | Second Hill | Sussex | 385137N | 0751542W |
| DE01 | Sheppards Island | Sussex | 385527N | 0751922W |
| DE01 | Thompson Island | Sussex | 384124N | 0750537W |
| DE01 | Todds Island | Sussex | 385440N | 0751932W |
| DE02 | Vansant Island | Kent | 390822N | 0753033W |
| DE01 | Wall Island | Sussex | 384858N | 0751243W |
