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BHistory
History · Sidney Township

Sidney Township’s post office opened in 1862, and 19% of its homes were built before 1940

More historic than 60% of U.S. towns · #278 of 701 in Michigan. What drives it

Its Register listing is the Boys' Club Building. Below: maps from 1985 on and the census since 1860.

1862first post office
1on the National Register
19%homes built before 1940
Quick answers

How Sidney Township began

When was Sidney Township founded?

1862

The Sidney Township post office opened in 1862, the earliest record of the town by name. Another post office, Colby (1879), opened inside today’s town and later closed.

First census: 172 in 18602020 census: 2,538164 years

How historic is Sidney Township?

B

More historic than 60% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Sidney Township post office (Blevins & Helbock, CC0).
History grade

What drives Sidney Township’s History grade

On its age, its old homes and the National Register, Sidney Township is more historic than 60% of U.S. towns, #278 of 701 in Michigan. Its share of homes from before 1940 holds the grade up; its age pulls it down.

B
HistoryA character grade: shown, never part of Sidney Township’s overall grade.
All U.S. towns we grade (21,289)Ahead of 60%
NewerOlder
Michigan towns of 2,500+ (701)Ahead of 60%

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 Sidney Township’s 3.8 sits above most of its state (74% 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 is a Census survey estimate (±7.4 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 Sidney 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 Sidney Township’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
People over time

Sidney Township, census by census

05001,0001,5002,0002,5001900195020002,224 in 1880Low: 985

Lost half of its people between 1880 and 1940, then more than doubled.

17 censuses, 1860–2020.

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

The story so far

Sidney Township, in brief

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

Sidney Township is a civil township of Montcalm County in the U.S. state of Michigan. The population was 2,538 at the 2020 census.

Its first post office opened in 1862. Its population held steady between the last two censuses: 2,574 in 2010, 2,538 in 2020.

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

Timeline

Sidney Township, 1862 to 2010

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1862Post officeThe Sidney post office opens
  3. 1879Post officeThe Colby post office opens
  4. 1899Post officeThe Colby post office closes
  5. 20th century
  6. 1928BuiltBoys' Club Building is built
  7. 1985On the mapFirst mapped by the U.S. Geological Survey
  8. 21st century
  9. 2010CensusPopulation peaks at 2,574
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
On the map

Sidney Township on the map in 1985

The U.S. Geological Survey’s map of Sidney Township.

Sidney Township on the 1985 USGS map1985Cedar Springs sheet · 1:100,000

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

On the National Register

1 historic place in Sidney Township

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts
first listed
2004
Boys' Club Building
Buildings

Architectural styles listings

Art Deco1
Elizabethan Revival1

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Famous people

Famous people close to Sidney Township

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

See all →
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Another post office, Colby, opened and closed inside today’s town.

Sidney
1862–today
Colby
1879–1899
18601940today
Hamlets and corners on the map
SheridanSidney
Gone or out of use
Colby Post Officepost officeColby's StationlocaleSidney Stationlocale
3cemeteries and burying grounds inside Sidney Township
North SidneySidney TownshipSouth Sidney

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Stories next door

History across the town line

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

Questions about Sidney Township’s history

What year was Sidney Township founded?

The Sidney Township post office opened in 1862, the earliest record of the town by name (U.S. post office records).

How does Sidney Township rank for history?

Sidney Township is more historic than 60% of U.S. towns, #278 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 Sidney Township?

One place: the Boys' Club Building (listed 2004).

How old are the homes in Sidney Township?

19% of Sidney Township’s homes were built before 1940 (Census estimate, ±7.4 points), against a typical 12% for a Michigan town; the median home was built in 1976.

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).

From the National Register of Historic Places (1), U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.