| Abraham Bomberger Farmhouse | Harrisburg | Building | 2026 |
| Allerman, Conrad and Margaret, House | Ebenezer | Building | 2011 |
| Ayres, John, House | Dauphin | Building | 1979 |
| B'Nai Jacob Synagogue | Middletown | Building | 1985 |
| Bridge in Lykens Township No. 1 | Edman | Structure | 1988 |
| Bridge in Lykens Township No. 2 | Fearnot | Structure | 1988 |
| Bridge in Reed Township | Inglenook | Structure | 1988 |
| Broad Street Market | Harrisburg | Building | 1974 |
| Calver Island | Swatara Township | Site | 2007 |
| Cameron, Simon, House and Bank | Middletown | Building | 1976 |
| Cameron, Simon, School | Harrisburg | Building | 1986 |
| Camp Curtin Fire Station | Harrisburg | Building | 1981 |
| Camp Curtin Memorial Methodist Episcopal Church | Harrisburg | Building | 2010 |
| Clemson Island Prehistoric District | Halifax | District | 1981 |
| Colonial Theatre | Harrisburg | Building | 1982 |
| Craig Family Cemetery | Harrisburg | Site | 2024 |
| Dauphin County Bridge No. 27 | Pillow | Structure | 1993 |
| Dauphin County Courthouse | Harrisburg | Building | 1993 |
| Derry Session House and Enclosure | Hershey | Building | 2006 |
| Donaldson, William, House | Harrisburg | Building | 1990 |
| Finney House | Harrisburg | Building | 2026 |
| Fort Hunter Historic District | Fort Hunter | District | 1979 |
| GAR Building | Lykens | Building | 1986 |
| German Evangelical Zion Lutheran Church | Harrisburg | Building | 1975 |
| Griffith, William R., House | Harrisburg | Building | 1976 |
| Harris Switch Tower, Pennsylvania Railroad | Harrisbug | Building | 1994 |
| Harris, John, Mansion NHL | Harrisburg | Building | 1973 |
| Harrisburg 19th Street Armory | Harrisburg | Building | 1991 |
| Harrisburg Cemetery | Harrisburg | District | 1985 |
| Harrisburg Central Railroad Station and Trainshed NHL | Harrisburg | Building | 1975 |
| Harrisburg Federal Building | Harrisburg | Building | 2026 |
| Harrisburg Historic District | Harrisburg | District | 1976 |
| Harrisburg Military Post | Harrisburg | District | 1991 |
| Harrisburg Polyclinic Hospital | Harrisburg | Building | 2004 |
| Harrisburg Technical High School | Harrisburg | Building | 1982 |
| Henderson, Dr. William, House | Hummelstown | Building | 1979 |
| Henniger Farm Covered Bridge | Elizabethville | Structure | 1978 |
| Hershey Community Center Building | Hershey | Building | 1980 |
| Hershey, Milton S., Mansion NHL | Hershey | Building | 1978 |
| Highspire High School | Highspire | Building | 1990 |
| Hotel Lykens | Lykens | Building | 2016 |
| Israel Building | Lykens | Building | 2016 |
| Keystone Building | Harrisburg | Building | 1979 |
| Keystone Hotel | Hummelstown | Building | 1985 |
| Kunkel Building | Harrisburg | Building | 1982 |
| Legislative Route 1 Sycamore Allee | Halifax and Reed | Site | 2007 |
| Matlack, Enoch, House | Hummelstown | Building | 1979 |
| McAllister, Archibald, House | Harrisburg | Building | 1976 |
| Midland Cemetery | Swatara Township | Site | 2023 |
| Midtown Harrisburg Historic District | Harrisburg | District | 1983 |
| Millersburg Ferry | Millersburg | Site | 2006 |
| Millersburg Passenger Rail Station | Millersburg | Building | 2002 |
| Mount Pleasant Historic District | Harrisburg | District | 1985 |
| Mount Pleasant Historic District (Boundary Increase) | Harrisburg | District | 1990 |
| Old Downtown Harrisburg Commercial Historic District | Harrisburg | District | 1983 |
| Old Downtown Harrisburg Commercial Historic District (Boundary Increase) | Harrisburg | District | 1984 |
| Old Uptown Harrisburg Historic District | Harrisburg | District | 1990 |
| Penn, William, Memorial Museum and State Archives Building | Harrisburg | Building | 2014 |
| Pennsylvania Railroad GG1 Streamlined Electric Locomotive #4859 | Harrisburg | Structure | 2004 |
| Pennsylvania State Capitol Complex (Boundary Revision) NHL | Harrisburg | District | 2013 |
| Pennsylvania State Lunatic Hospital | Harrisburg | Building | 1986 |
| Quarries of the Hummelstown Brownstone Company | Derry Township | Site | 2003 |
| Raymond, Charles and Joseph, Houses | Middletown | Building | 1979 |
| Rockville Bridge | Marysville | Structure | 1975 |
| Romberger-Stover House | Berrysburg | Building | 1980 |
| Salem United Church of Christ | Harrisburg | Building | 1975 |
| Seel, William, Building | Harrisburg | Building | 1980 |
| Sheffield Apartments | Harrisburg | Building | 1990 |
| Shoop Site (36DA20) | Jackson | Site | 1986 |
| Smith, Henry, Farm | Middletown | District | 1988 |
| Soldiers and Sailors Memorial Bridge | Harrisburg | Structure | 1988 |
| St. Peter's Kierch | Middletown | Building | 1973 |
| Star Barn Complex | Lower Swatara | Building | 2000 |
| State Capitol Building, Pennsylvania NHL | Harrisburg | Building | 1977 |
| Steelton High School | Steelton Borough | Building | 2011 |
| Swatara Ferry House | Middletown | Building | 1976 |
| Todd, John, House | Hummelstown | District | 1988 |
| Walnut Street Bridge | Harrisburg | Structure | 1972 |
| Zembo Shrine | Harrisburg | Building | 2024 |
| Zion Lutheran Church and Graveyard | Hummelstown | Building | 1979 |
Harris, John, Mansion NHL Harrisburg · Building · listed 1973 
Harrisburg Central Railroad Station and Trainshed NHL Harrisburg · Building · listed 1975 
Hershey, Milton S., Mansion NHL Hershey · Building · listed 1978 
State Capitol Building, Pennsylvania NHL Harrisburg · Building · listed 1977 
Pennsylvania State Capitol Complex (Boundary Revision) NHL Harrisburg · District · listed 2013 
Allerman, Conrad and Margaret, House Ebenezer · Building · listed 2011 
Ayres, John, House Dauphin · Building · listed 1979 
B'Nai Jacob Synagogue Middletown · Building · listed 1985 
Bridge in Lykens Township No. 1 Edman · Structure · listed 1988 
Bridge in Lykens Township No. 2 Fearnot · Structure · listed 1988