Pennsylvania - Area of significance: Agriculture
| Levan Farm |
| Long Meadow Farm |
| Longwood Gardens District |
| Manchester, Isaac, House |
| Mansfield |
| Marshall, Humphry, House |
| Marshall, Humphry, House |
| McCalls Ferry Farm |
| McClelland-Grimes Farm |
| McCoy-Shoemaker Farm |
| Michael, John, Farm |
| Middle Pickering Rural Historic District |
| Millmont Farm |
| Mill Tract Farm |
| Mount Joy |
| Neff Round Barn |
| Newtown Historic District |
| Normandy Farmstead |
| North Prince Street Historic District |
| Nyce Farm |
| Oak Hall Historic District |
| Okehocking Historic District |
| Old Dry Road |
| Oley Township Historic District |
| Orton, Almerion C. & Barbara Moseman, Farm |
| Paradise Valley Historic District |
| Parkinson, Robert, Farm |
| Paxson, Isaiah, Farm |
| Penn's Park General Store Complex |
| Pettit's Ford |
| Phillips Mill Historic District |
| Phipps Conservatory |
| Pierceville Run Agricultural Historic District |
| Pleasant Hill Plantation |
| Potter-Allison Farm |
| Pottstown Roller Mill |
| Quiet Valley Farm |
| Reading Company Grain Elevator |
| Rebersburg Historic District |
| Reiff Farm |
| Rhone, Leonard, House |
| Rice-Pennebecker Farm |
| Ridge Valley Rural Historic District |
| Ridgewood Farm |
| Ridley Creek State Park |
| Rieser-Shoemaker Farm |
| Robb Farm |
| Rock Hill Farm |
| Rodale Organic Gardening Experimental Farm |
| Ross, Frank L., Farm |
| Royer-Nicodemus House and Farm |
| Schlegel, Christian, Farm |
| Schrot, Joseph F. and Anna B., Farm |
| Seeds, Hugh D. and Martha S., Farm |
| Sewickley Manor |
| Shaw Historic District |
| Shreiner Farm |
| Siegfried's Dale Farm |
| Sinking Springs Farms |
| Slusher, David, Farm |
| Spangler-Benner Farm |
| Spangler, George Christian and Anna Catherine, Farm |
| Springer Farm |
| Springfield Mill |
| Spring Grove Farm and Distillery |
| Springtown Historic District |
| Stanley |
| Star Barn Complex |
| Stirling, Maj. Gen. Lord, Quarters |
| Stover-Myers Mill |
| Stover-Winger Farm |
| Stupp-Oxenrider Farm |
| St. Vincent Archabbey Gristmill |
| Taylor-Cope Historic District |
| Taylorstown Historic District |
| Thome, James, Farm |
| Tulpehocken Creek Historic District |
| Tulpehocken Manor Plantation |
| Turn, John, Farm |
| Unionville Village Historic District |
| Upper Aquetong Valley Historic District |
| Upper Roxborough Historic District |
| Van Kirk Farm |
| Village of Edgewood Historic District |
| Wagner, John and Family Farmstead |
| Wallace-Cross Mill |
| Warwick Furnace/Farms |
| Warwick Mills |
| Waterloo Mills Historic District |
| Weber-Weaver Farm |
| West Vincent Highlands Historic District |
| Williams, John, Farm |
| Williams, John, House |
| Windom Mill Farm |
| Woodland |
| Worth-Jefferis Rural Historic District |
Data from United States Park Service and Wikidata
