National Register Listings in Harford County, Maryland
Baker, James B., House
Bel Air Armory
Bel Air Courthouse Historic District
Berkley Crossroads Historic District
Berkley School
Best Endeavor
Bon Air
Broom's Bloom
Chestnut Ridge
Church of the Holy Trinity
Churchville Presbyterian Church
D. H. Springhouse
Darlington Historic District
Deer Creek Friends Meetinghouse
Dibb House
Fair Meadows
Finney Houses Historic District
Gladden Farm
Graham-Crocker House
Gray Gables
Graystone Lodge
Griffith House
Gunpowder Meetinghouse
Harford Furnace Historic District
Harford National Bank
Havre de Grace Historic District
Havre de Grace Lighthouse
Hays House
Hays-Heighe House
Heighe House
Hidden Valley Farm
Ivory Mills
Jerusalem Mill Village
Joshua's Meadows
Ladew Topiary Gardens and House
Liriodendron
Little Falls Meetinghouse
Lower Deer Creek Valley Historic District
MARTHA LEWIS (skipjack)
McComas Institute
Medical Hall Historic District
Mill Green Historic District
Mount Adams
Nelson-Reardon-Kennard House
Norris-Stirling House
Odd Fellows Lodge
Olney
Pooles Island Lighthouse
Poplar Hill
Presbury Meetinghouse
Priest Neal's Mass House and Mill Site
Proctor House
Rigbie House
Rockdale
Silver Houses Historic District
Sion Hill
Slate Ridge School
Sophia's Dairy
Southern Terminal, Susquehanna and Tidewater Canal
St. George's Parish Vestry House
St. Ignatius Church
St. Mary's Church
Streett, Col. John, House
Swansbury
Thomas Run Church
Tudor Hall
Tudor Hall (Boundary Decrease)
Vineyard, The
Vineyard, The (Boundary Decrease)
Webster's Forest
Whitaker's Mill Historic District
Whiteford-Cardiff Historic District
Wildfell
Winsted
Woodside
Woodview