Maine - Area of significance: Social History
| Nannau |
| Newfield (Willowbrook) Historic District |
| Norridgewock Free Public Library |
| North Jay Grange Store |
| North Monmouth Library |
| North Waterford Congregational Church |
| Odd Fellows-Rebekah Hall |
| Old Red Store |
| Paine Neighborhood Historic District |
| Parsons, Marion, House |
| Peck, Bradford, House |
| Pendle Hill |
| Pleasant River Grange No. 492 |
| Pond Meeting House |
| Porter Memorial Library |
| Portland City Hospital |
| Pownalborough Courthouse |
| Pythian Opera House |
| Quincy Building |
| Rangley Public Library |
| Reverie Cove |
| Rock Rest |
| Ropes End |
| Rural Hall |
| Russwurm, John B., House |
| Saint Mary's General Hospital |
| Scribner Homestead |
| Sea Change |
| Seven Star Grange, No. 73 |
| Shaker Village |
| South China Meeting House |
| Sproul's Cafe |
| State Reform School Historic District |
| Steep Falls Library |
| St. Joseph's School |
| St. Lawrence Church |
| Strathglass Park District |
| Swedish Lutheran Church |
| Timmerhuset |
| Todd House |
| Togus VA Medical Center and National Cemetery |
| Tranquility Grange No. 344 |
| Trefethen-Evergreen Improvement Association |
| Turrets, The |
| Union Hall |
| Union Town House (Former) |
| Vines, Richard, Monument |
| Walker Memorial Hall |
| Wallingford Hall |
| Warren Block |
| Washington Park Historic District |
| Waterboro Grange, No. 432 |
| Webb River Grange |
| Weld Town Hall |
| West Paris Lodge No. 15, I.O.O.F. |
| West Street Historic District |
| Whitefield Union Hall |
| White Memorial Building |
| Wiscasset Jail and Museum |
Data from United States Park Service and Wikidata
