Pennsylvania - Area of significance: Agriculture
| Ag Hill Complex |
| Ayres, Bucher, Farm |
| Bachman and Forry Tobacco Warehouse |
| Bailey, John, Farm |
| Bausman Farmstead |
| Bechdel II, Christian, House |
| Beck, William Henry and Clara Singer, Farm |
| Bergy Bridge Historic District |
| Berkheimer, Henry and Elizabeth, Farm |
| B.F. Good & Company Leaf Tobacco Warehouse |
| Bixler, Michael and Magdealena Farmstead |
| Booth Farm |
| Bower Homestead Farm |
| Boyer-Mertz Farm |
| Brendle Farms |
| Bridge Mill Farm |
| Brinton, Edward, House |
| Brodhead Farm |
| Brotherton Farm |
| Bryn Mawr |
| Burnside Plantation |
| Burns, Jeremiah, Farm |
| Carter-Worth House and Farm |
| Carversville Historic District |
| Centre Mills |
| Cheyney, Squire, Farm |
| Christman, Philip, House |
| Church Hill Farm |
| Clear Spring Mill |
| Clinger-Moses Mill Complex |
| Coffeetown Grist Mill |
| Cold Point Historic District |
| Cold Spring Farm |
| Cold Spring Farm Springhouse |
| Colebrook Manor |
| Cole, Warren Z., House |
| Colley, Peter, Tavern and Barn |
| Como Farm |
| Coopersburg Historic District |
| Corson, Alan W., Homestead |
| Crook Farm |
| Culbertson-Harbison Farm |
| Davis, David, Farm |
| Deery Family Homestead |
| Derbydown Homestead |
| Doe Run Village Historic District |
| Dougherty, Edward, House |
| Dougherty, Philip, House |
| Dreibelbis, Joel, Farm |
| Durham Mill and Furnace |
| Dutch Corner Historic Agricultural District |
| Dykeman's Spring |
| Eakin, John, Farm |
| Englehardt, John, Homestead |
| Evansburg Historic District |
| Farmar Mill |
| Farmers' High School |
| Federal Barn |
| Fenner-Snyder Mill |
| Fordhook Farm |
| Forest Grove Historic District |
| Gardenville-North Branch Rural Historic District |
| Gehman, John, Farm |
| Gettysburg Battlefield Historic District |
| Gilfillan Farm |
| Gordon, George W., Farm |
| Grand View Dairy Farm |
| Grubb, Conrad, Homestead |
| Habeck, Christian, Farm |
| Hair, Matthew, Farm |
| Half-Moon Inn |
| Hamilton-Ely Farmstead |
| Hampton Hill |
| Handycraft Farmstead |
| Hannastown Farm |
| Hartman Cider Press |
| Hays Bridge Historic District |
| Herr, Christian and Emma, Farm |
| Herr, Hans, House |
| Hibshman Farm |
| Honey Hollow Watershed |
| Hopewell Farm |
| Hopewell Historic District |
| Houseknecht Farm |
| Hutchinson Farm |
| Idlewild Farm Complex |
| Indian Deep Farm |
| Irwinton Historic District |
| Kent, Thomas, Jr., Farm |
| Kissling Farm |
| Knapp Farm |
| Knipe-Johnson Farm |
| Knipe-Moore-Rupp Farm |
| Knorr-Bare Farm |
| Knurr Log House |
| Kulp, Isaac, Farm |
| Kuster Mill |
| Landis Homestead |
| Leaser, Frederick and Catherine, Farm |
| Leiby, Jacob, Farm |
Data from United States Park Service and Wikidata
