Delaware - Criteria: B (person)
| Achmester |
| Adams Home Farm |
| Archmere |
| Ashton Historic District |
| Baily House |
| Barratt Hall |
| Belmont Hall |
| Biggs, Gov. Benjamin T., Farm |
| Bloomfield |
| Brandywine Manufacturers Sunday School |
| Breck's Mill Area |
| Bridgeville Historic District |
| Brindley Farm |
| Broom, Jacob, House |
| Buena Vista |
| Burton-Blackstone-Carey Store |
| Cannon's Ferry |
| Carlisle House |
| Christ Church |
| Clearfield Farm |
| Cochran Grange |
| Coffee Run Mission Site |
| Coursey, Thomas B., House |
| Darley House |
| Deer Park Farm |
| Dickinson, John, House |
| Eden Hill |
| Egglinton Hall |
| Eighth Street Park Historic District |
| Eleutherian Mills |
| Fell Historic District |
| First Broiler House |
| Fisher's Paradise |
| Gibraltar |
| Govatos'/McVey Building |
| Great Geneva |
| Hale-Byrnes House |
| Hall, Col. David, House |
| Hanson, B. F., House |
| Hazzard House |
| Hermitage, The |
| Ivy Dale Farm |
| "Johnson, William Julius ""Judy"" House" |
| La Grange |
| Lewis, Jefferson, House |
| Lindale,John B.,House |
| Linden Hill |
| Lobdell Estate, Minquadale Home |
| Lombardy Hall |
| Louviers |
| Lower Louviers and Chicken Alley |
| Lower St. Jones Neck Historic District |
| Lum's Mill House |
| MacDonough, Comdr. Thomas, House |
| Macomb Farm |
| McColley, James, House |
| McLane, Louis, House |
| Ott's Chapel |
| Ponder, Gov. James, House |
| Public School No. 111-C |
| Pyle, Howard, Studios |
| Raymond Neck Historic District |
| Robinson House |
| Robinson, Jesse, House |
| Rockford Park |
| Rockwood |
| Ross, Gov. William H., House |
| Russell, William, House |
| Schoonover, Frank E., Studios |
| Snowland |
| Somerville |
| Spring Garden |
| Starr House |
| Steel, James, House |
| St. Joseph's on the Brandywine |
| St. Mary of the Immaculate Conception Church |
| St. Mary's School |
| Stonum |
| Sutton House |
| Tharp House |
| Truitt, Gov. George, House |
| Tyn Head Court |
| Village of Arden |
| Walnut Farm |
| Welsh Tract Baptist Church |
| Wheel of Fortune |
| Wilmington Club |
| Woodward Houses |
| Wright House |
Data from United States Park Service and Wikidata
