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History · Grenville Township

Grenville Township dates to 1914, and 29% of its homes were built before 1940

Below: maps from 1970 on and the census since 1930.

1914founded
0on the National Register
29%homes built before 1940
Quick answers

How Grenville Township began

When was Grenville Township founded?

1914

Grenville Township dates its founding to 1914 (Wikipedia’s history). The census first counted it in 1930.

First census: 247 in 19302020 census: 65112 years
Founding year: Wikipedia.

What stands out about Grenville Township’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Grenville Township’s collection

The first neighbors to add old photos shape how Grenville Township’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story so far

Grenville Township, in brief

Wikipedia doesn’t have a history of Grenville Township yet. The photos, dates and memories neighbors add here are how it gets written.

Grenville is a town in Day County, South Dakota, United States. The population was 48 at the 2020 census. Grenville was laid out in 1914, and named for the greenery of the original town site.

Grenville Township was established in 1914. Between the 2010 and 2020 censuses its population fell from 84 to 65 (-23%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

Grenville Township, decade by decade

On the map

Grenville Township on the map, 1970 to 1985

Every edition of the U.S. Geological Survey’s map of Grenville Township. Tap a year, or press play to watch the town change.

Grenville Township on the 1970 USGS mapGrenville Township on the 1985 USGS map1970Roslyn sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Grenville Township.

People over time

Grenville Township, census by census

010020019401960198020002020Peak: 260

Between 48 and 260 people in every census since 1930.

10 censuses, 1930–2020.

U.S. Census Bureau decennial counts, from the census table on Grenville Township’s Wikipedia page.

Famous people

Famous people close to Grenville Township

Nobody well known was born in Grenville Township itself, so here are the best known from just nearby.

See all →
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Grenville Township’s history

What year was Grenville Township founded?

In 1914, according to Wikipedia’s history of the town. the census of 1930 counted 247 people here.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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 Wikimedia Commons (1), 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.