Connecticut - Criteria: B (person)
| Indian Harbor Yacht Club |
| Ives, Charles, House |
| Ivoryton Historic District |
| James Pharmacy |
| Jillson, William, Stone House |
| Johnson, Philip, Glass House |
| Johnson, Wilfred X., House |
| Jones, Theophilus, House |
| Keeler Tavern |
| Kendrick, John, House |
| Kimberly Mansion |
| King, George, House |
| Knapp Tavern |
| Lakeville Historic District |
| Lathrop, Dr. Joshua, House |
| Lebanon Green Historic District |
| Leffingwell Inn |
| Lincoln Theatre |
| Lounsbury, Phineas Chapman, House |
| Lyman, David, II, House |
| Main Street Historic District |
| Mansfield, Richard, House |
| Marion Castle, Terre Bonne |
| Marlborough Street Historic District |
| Marsh, Othniel C., House |
| Mather, Stephen Tyng, House |
| Mendel, Lafayette B., House |
| Merrill, James, House |
| Migeon Avenue Historic District |
| Monte Cristo Cottage |
| Moore, Deacon John, House |
| Moore Jr., William, House |
| Morley, Edward W., House |
| Nathaniel Wheeler Memorial Fountain |
| Naugatuck Center Historic District |
| Norfolk Historic District |
| Norton, Charles H., House |
| Osbornedale |
| Palmer, Capt. Nathaniel B., House |
| Palmer, Luther, House |
| Pequotsepos Manor |
| Perkins, Maxwell E., House |
| Perkins-Rockwell House |
| Pinto, William, House |
| Pistol Factory Dwelling |
| Pitkin, Elisha, House |
| Portland Brownstone Quarries |
| Post Hill Historic District |
| Pratt House |
| Prospect Hill Historic District |
| Putnam Farm |
| Putnam Hill Historic District |
| Putnam, Israel, Wolf Den |
| Putnam Memorial State Park |
| Raymond-Bradford Homestead |
| Reeve, Tapping, House and Law School |
| Remington, Frederic, House |
| Restmore |
| Riverton Historic District |
| Rock Hall |
| Rock Ledge |
| Rockwell Park |
| Rogers, John, Studio |
| Roxbury Center |
| Russell Company Upper Mill |
| Russell, Edward Augustus, House |
| Salem Historic District |
| Sanford-Curtis-Thurber House |
| Sanford-Humphreys House |
| Sanford Road Historic District |
| Sanseer Mill |
| Seaside Park |
| Sedgwick, Maj. Gen. John, House |
| Seelye, Seth, House |
| Seventh Sister |
| Shaw Mansion |
| Silvermine Center Historic District |
| Simeon North Factory Site |
| Simpson, Dr. Frank T., House |
| Simpson, Samuel, House |
| Slater Library and Fanning Annex |
| Smith, Jabez, House |
| Southbury Historic District No. 1 |
| South End Historic District |
| Sterling Homestead |
| Stowe, Harriet Beecher, House |
| Strong House |
| Sturges, Jonathan, House |
| Sturges-Wright House |
| Swain-Harrison House |
| Talcottville Historic District |
| Tarbell, Ida, House |
| Tarrywile |
| Tranquility Farm |
| Treadwell House |
| Trinity Church |
| Trowbridge Square Historic District |
| Trumbull, John, Birthplace |
| Tully, William, House |
| Turner, Dr. Philip, House |
Data from United States Park Service and Wikidata