Scio Township’s post office opened in 1835, and 1 of its places is on the National Register
More historic than 54% of U.S. towns · #330 of 701 in Michigan. What drives it
Most of Scio Township was built recently: 3% of its homes predate 1940 and the median home dates from 1994. Its Register listing is the Delhi Bridge. Below: 1 old photo or paper and maps from 1902 on.
The Scio Township post office opened in 1835, the earliest record of the town by name. Two smaller post offices, Scio (1835) and Delhi Mills (1871), opened inside today’s town and later closed.
2020 census: 17,552191 years
How historic is Scio Township?
B−
More historic than 54% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Scio Township post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Scio Township’s History grade
On its age, its old homes and the National Register, Scio Township is more historic than 54% of U.S. towns, #330 of 701 in Michigan. Its age holds the grade up; its share of homes from before 1940 pulls it down.
B−
HistoryA character grade: shown, never part of Scio Township’s overall grade.
Few Michigan towns list much on the Register (a typical Michigan town has 0.0 per 10,000 residents, the U.S. 2.4), so Scio Township’s 0.6 sits near the middle of its state (64% of Michigan towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to B+. The pre-1940 share (±1.4 points) is firm at this size. The founding year is the first post office, not a stated founding date.
Founding year: the first post office (other dates in Quick answers). Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Scio Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners, places now gone and burying grounds
Two other post offices opened and closed inside today’s town.
Scio
1835–1901
Delhi Mills
1871–1903
18301930today
Hamlets and corners on the map
Delhi MillsScioScio Farms Estates Mobile Home Park
Gone or out of use
Delhi Mills Post Officepost officeDelhi StationlocaleHoney Creek Church of the NazarenechurchScio Post Officepost officeScio Stationlocale
4cemeteries and burying grounds inside Scio Township
PhelpsPopkinsSalem Lutheran ChurchScio
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Scio Township on the map, 1902 to 1983
Every edition of the U.S. Geological Survey’s map of Scio Township. Tap a year, or press play to watch the town change.
1902Dexter sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Scio Township.
Samuel W. Foster bought a mill site on the Huron River at what is now Scio in 1835. The community was platted by Dr. Cyril Nichols from Vermont. A post office was established in 1835. The office was moved to Delhi Mills and renamed in February 1871, though the Scio office was re-established in September 1871. The post office took its name from the township; however, early township records were destroyed by fire, and it is uncertain why "Scio" was chosen. There are at least three origins suggested for the name. The first suggests it derives from the Greek island of Chios, and the second that it was named after Scio, New York, although that town was also named for Chios. Thirdly, by coincidence scio also means "I know" in Latin, so following the American Civil War some people assumed this was the origin of the name.
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.
The Scio Township post office opened in 1835, the earliest record of the town by name (U.S. post office records).
How does Scio Township rank for history?
Scio Township is more historic than 54% of U.S. towns, #330 of 701 in Michigan. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Scio Township?
One place: the Delhi Bridge (listed 2008).
How old are the homes in Scio Township?
3% of Scio Township’s homes were built before 1940 (Census estimate, ±1.4 points), against a typical 12% for a Michigan town; the median home was built in 1994.
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).
From Wikimedia Commons (23), Wikidata (1), the National Register of Historic Places (1), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) 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.
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