The story so far
from the U.S. CensusBetween the 2010 and 2020 censuses its population grew from 97 to 108 (+11%). Half of its homes were built before 1941.
Wikipedia doesn’t have a history of Hart yet — the old photos, dates and memories neighbors add here are how it gets written.
Be one of the first
Start Hart’s collection
The first neighbors to add old photos shape how Hart’s history is told.
0 of 10 decades since 1900 have photos 📦Share a family photoSign in to add one+10By decade
Hart, decade by decade
Before
2000
2000
No old photos in the archives yetWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
📷 Add from your albumNational Register of Historic Places
1 historic place in Hart
1 place in Hart is on the National Register of Historic Places, the country’s official list of buildings and places worth saving.
#156
In South Dakotaby listings · most towns there have none
1place listed1 building
0National Historic LandmarksNone here yet
1historic building protectedcounting each building in a district
2000first listedHart School #3
Where they are
Tap a dot for a photo and link. Districts show at their center.
Buildings
When they were listed
The Register began in 1966.
60s
70s
80s
90s
100s
10s
20s
National Park Service, National Register of Historic Places (05/22/2026) · styles from the National Archives catalog · photos from Wikimedia Commons, credited on each place
Then & now
When neighbors add old photos, retakes from the same spot appear here side by side.