From Iosco Township’s archive · credits on each photo
Quick answers
How Iosco Township began
When was Iosco Township founded?
1880
The Iosco Township post office opened in 1880, the earliest record of the town by name. Three smaller post offices, Woodbridge (1837), Josco (1838) and Iosco (1880), opened inside today’s town and later closed.
2020 census: 3,870146 years
How historic is Iosco Township?
C
More historic than 31% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Iosco Township post office (Blevins & Helbock, CC0).
History grade
What drives Iosco Township’s History grade
On its age, its old homes and the National Register, Iosco Township is more historic than 31% of U.S. towns, #560 of 701 in Michigan. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
C
HistoryA character grade: shown, never part of Iosco 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 Iosco Township’s 0.0 sits below most of its state (32% of Michigan towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C to C+. The pre-1940 share is a Census survey estimate (±6.6 points). 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 Iosco 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
Three other post offices opened and closed inside today’s town.
Woodbridge
1837–1838
Josco
1838–1880
Iosco
1880–1907
18301930today
Hamlets and corners on the map
Parkers Corners
Gone or out of use
Iosco Post Officepost office
4cemeteries and burying grounds inside Iosco Township
EiseleLoreeMunsellWright
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
On the map
Iosco Township on the map, 1908 to 1973
Every edition of the U.S. Geological Survey’s map of Iosco Township. Tap a year, or press play to watch the town change.
1908Fowlerville 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 Iosco Township.
The story so far
Iosco Township, in brief
Wikipedia doesn’t have a history of Iosco Township yet. The photos, dates and memories neighbors add here are how it gets written.
Iosco Township is a civil township of Livingston County in the U.S. state of Michigan. The population was 3,870 at the 2020 census, up from 3,801 at the 2010 census.
Its first post office opened in 1880. Its population held steady between the last two censuses: 3,801 in 2010, 3,870 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Iosco Township, 1837 to 1908
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.
The Iosco Township post office opened in 1880, the earliest record of the town by name (U.S. post office records).
How does Iosco Township rank for history?
Iosco Township is more historic than 31% of U.S. towns, #560 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.
How old are the homes in Iosco Township?
11% of Iosco Township’s homes were built before 1940 (Census estimate, ±6.6 points), against a typical 12% for a Michigan town; the median home was built in 1993.
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 (4), 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.