Most of Sisseton Township was built recently: 8% of its homes predate 1940 and the median home dates from 1998. Below: 6 old photos and papers, maps from 1953 on, and the census since 1900.
From Sisseton Township’s archive · credits on each photo
Quick answers
How Sisseton Township began
When was Sisseton Township founded?
1907
Sisseton Township dates its founding to 1907 (Wikidata). The census first counted it in 1900.
First census: 928 in 19002020 census: 761119 years
Founding year: Wikidata.
The story so far
Sisseton Township, in brief
Wikipedia doesn’t have a history of Sisseton Township yet. The photos, dates and memories neighbors add here are how it gets written.
Sisseton is a city in Roberts County, South Dakota, United States. The population was 2,479 at the 2020 census. It is the county seat of Roberts County. Sisseton is home to several tourist attractions, including the Nicollet Tower, and is near the "Song to the Great Spirit" building on the Sisseton Wahpeton College campus. The city is named for the Sisseton division of the Sioux people. It also serves as an important part of the Lake Traverse Indian Reservation.
Sisseton Township was established in 1907. Between the 2010 and 2020 censuses its population grew from 453 to 761 (+68%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Sisseton Township, 1907 to 1953
Woven from the archive, old maps, post office records, the National Register and the people born here.
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Every edition of the U.S. Geological Survey’s map of Sisseton Township. Tap a year, or press play to watch the town change.
1953Milbank sheet · 1:250,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Sisseton Township.
Then & now
Stand where they stood
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Retake this viewSisseton, S. Dak, 1909
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Sisseton Township’s page.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From the Library of Congress (6), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.