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Carthage Jail from southwestPhoto: Nyttend · Public domain
AHistory
History · Carthage Township

Carthage Township’s post office opened in 1833, and 27% of its homes were built before 1940

More historic than 94% of U.S. towns · #42 of 768 in Illinois. What drives it

2 places in town are on the National Register. Below: 3 old photos and papers, maps from 1933 on, and the census since 1850.

1833first post office
2on the National Register
27%homes built before 1940
3old photos & papers
From Carthage Township’s archive · credits on each photo
Quick answers

How Carthage Township began

When was Carthage Township founded?

1833

The Carthage Township post office opened in 1833, the earliest record of the town by name. Wikidata gives 1838. Another post office, Middle Creek (1857), opened inside today’s town and later closed.

First census: 400 in 18502020 census: 2,947193 years

How historic is Carthage Township?

A

More historic than 94% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Carthage Township post office (Blevins & Helbock, CC0). Wikidata: 1838.The full story ↓
History grade

What drives Carthage Township’s History grade

On its age, its old homes and the National Register, Carthage Township is more historic than 94% of U.S. towns, #42 of 768 in Illinois. All 3 inputs are above most U.S. towns; its National Register listings ranks highest and its age lowest.

A
HistoryA character grade: shown, never part of Carthage Township’s overall grade.
All U.S. towns we grade (21,289)Ahead of 94%
NewerOlder
Illinois towns of 2,500+ (768)Ahead of 95%

Few Illinois towns list much on the Register (a typical Illinois town has 0.5 per 10,000 residents, the U.S. 2.4), so Carthage Township’s 147 sits above most of its state (95% of Illinois towns have fewer) while its 43 historic buildings outnumber those of 84% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would still be A. The pre-1940 share is a Census survey estimate (±6.9 points). The founding year is the first post office, not a stated founding date; Wikidata’s 1838 falls in the same era, so the grade doesn’t depend on which one is used.

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 Carthage 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 Carthage Township’s collection

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

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

Carthage Township, census by census

05001,0001,5002,0002,5003,0003,5001850190019502000Peak: 3,350

Peaked at 3,350 in 1970; 2,490 people lived here in 2020.

17 censuses, 1850–2020.

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

Timeline

Carthage Township, 1851 to 1970

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

  1. 19th century
  2. 1851In the archiveMartyrdom of Joseph and Hiram Smith
  3. 1857Post officeThe Middle Creek post office opens
  4. 20th century
  5. 1906In the archiveCourthouse
  6. 1910Post officeThe Middle Creek post office closes
  7. 1930In the archiveCarthage College, Carthage, Illinois, 1930s (NBY 3129)
  8. 1933On the mapFirst mapped by the U.S. Geological Survey
  9. 1970CensusPopulation peaks at 3,350
The story

How Carthage Township came to be

From Wikipedia’s history of Carthage Township.

Read it all →

The first European-American settlers arrived in Carthage and in Hancock County in the first few decades of the 19th century. While sharing a name with the ancient city of Carthage, it is likely named more directly for Carthage, Tennessee. By 1833, they had erected simple buildings in Carthage. That year, a log cabin was built to serve as the county courthouse, and the county seat was moved from Montebello to Carthage. The town was platted in 1837.

Text from Wikipedia, licensed CC BY-SA 4.0.

By decade

Carthage Township, decade by decade

3 decades in the archive, from the 1850s to the 1930s. Scroll each row; tap a photo for its story.

1940s–1990snothing yet
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.
Add from your album
On the map

Carthage Township on the map, 1933 to 1974

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

Carthage Township on the 1933 USGS mapCarthage Township on the 1974 USGS map1933Carthage 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 Carthage 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.

Martyrdom of Joseph and Hiram Smith
Retake this viewMartyrdom of Joseph and Hiram Smith, 1851

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Carthage Township’s page.

Retake this view · +15
On the National Register

2 listings protect 43 historic buildings

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

places listed
2
National Historic Landmarks
0
none yet
historic buildings protected
43
each building in a district counts

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

Places that used to be

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

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

Hamlets and corners on the map
Middle Creek
Gone or out of use
East Union SchoolschoolFairplay SchoolschoolFranklin SchoolschoolGrant SchoolschoolHancock County FarmlocaleMount Zion SchoolschoolPleasant Valley SchoolschoolValleydale Schoolschool
5cemeteries and burying grounds inside Carthage Township
County HomeFranklinMoss RidgeOld Brick ChurchWoodring

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 Carthage Township’s history

What year was Carthage Township founded?

The Carthage Township post office opened in 1833, the earliest record of the town by name (U.S. post office records). Wikidata gives 1838.

How does Carthage Township rank for history?

Carthage Township is more historic than 94% of U.S. towns, #42 of 768 in Illinois. 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 Carthage Township?

27% of Carthage Township’s homes were built before 1940 (Census estimate, ±6.9 points), against a typical 11% for an Illinois town; the median home was built in 1961.

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 Wikimedia Commons (6), the Library of Congress (2), Wikidata (1), Wikipedia, 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.