Pennsylvania - Significance region: Local
| Grubb, Conrad, Homestead |
| Grubb Mansion |
| Grundy Mill Complex |
| Guinston United Presbyterian Church |
| Guldin Mill |
| Guthrie, George W., School |
| Gwynedd Hall |
| Habeck, Christian, Farm |
| Haddington Historic District |
| Hager Building |
| Hahnemann Medical College & Hospital Complex Historic District |
| Haines, Hanson, House |
| Haines Mill |
| Hain Mill |
| Hair, Matthew, Farm |
| Hajoca Corporation Headquarters and Showroom |
| Half-Moon Inn |
| Hall, Joseph E., House |
| Halls Mill Covered Bridge |
| Hamburg Historic District |
| Hamburg Public Library |
| Hamilton, Alexander, House |
| Hamilton Apartments |
| Hamilton-Ely Farmstead |
| Hamilton Family Estate |
| Hammersly-Strominger House |
| Hamnett Historic District |
| Hamorton Historic District |
| Hamot, Pierre S. V., House |
| Hampden Firehouse |
| Hance House and Barn |
| Handwrought |
| Handycraft Farmstead |
| Hanging Rock |
| Hanna Hall |
| Hanna, John, Farm |
| Hannastown Farm |
| Hanna, William B., School |
| Hannum, Col. John, House |
| Hanover Historic District |
| Hanover Junction Railroad Station |
| Happy Hollow Recreation Center |
| Harbaugh's Reformed Church |
| Harbison-Walker Refractories Company |
| Harding, Warren G., Junior High School |
| Hare's Hill Road Bridge |
| Harewood and Beechwood |
| Harlan Log House |
| Harmon's Covered Bridge |
| Harmony Forge Mansion |
| Harmony Mennonite Meetinghouse and Cemetery |
| Harnish, Johannes, Farmstead |
| Harrington Machine Shop |
| Harris Building |
| Harrisburg Avenue Tobacco Historic District |
| Harrisburg Cemetery |
| Harrisburg Polyclinic Hospital |
| Harrisburg Technical High School |
| Harrison House |
| Harrison, William H., School |
| Harriton |
| Hart Building |
| Hartley-Rose Belting Company Building |
| Hartman Cider Press |
| Hartman, George, House |
| Harvey, Nathan, House |
| Harvey, Peter, House and Barn |
| Hassenplug Bridge |
| Hatfield Borough Substation, Lock Up and Firehouse |
| Hatfield-Hibernia Historic District |
| Hawthorne, Nathaniel, School |
| Hawthorne School |
| Hayes Bridge |
| Hayes Homestead |
| Hayes, Jacob, House |
| Hayes Mill House |
| Hays Bridge Historic District |
| Hazeltine, A. J., House |
| Hazelton High School |
| Hazelwood Brewing Company |
| Heasley, Charles Grant, House |
| Heathside Cottage |
| Heirline Covered Bridge |
| Heishman Mill |
| Heiss, William A., House and Buggy Shop |
| Helfrich's Springs Grist Mill |
| Heller, George K., School |
| Heller, Michael and Margaret, House |
| Heller, William Jacob, House |
| Hendel Brothers, Sons and Company Hat Factory |
| Henderson, Dr. William, House |
| Henderson-Metz House |
| Henniger Farm Covered Bridge |
| Henry, Charles Wolcott, School |
| Henry Covered Bridge |
| Henry Whitaker’s Sons’ Mill |
| Herdic, Peter, House |
| Herpel Brothers Foundry and Machine Shop |
| Herr, Christian and Emma, Farm |
| Hershey Community Center Building |
Data from United States Park Service and Wikidata
