Founding year: Wikipedia. First post office: 1834.The full story ↓
History grade
What drives Farmington Township’s History grade
On its age, its old homes and the National Register, Farmington Township is more historic than 87% of U.S. towns, #108 of 768 in Illinois. All 3 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its National Register listings lowest.
A
HistoryA character grade: shown, never part of Farmington Township’s overall grade.
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 Farmington Township’s 3.2 sits above most of its state (71% of Illinois 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 A− to A. The pre-1940 share is a Census survey estimate (±7.2 points). Two sources give 1834.
Founding year: Wikipedia (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 Farmington 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
Another post office, Middlegrove, opened and closed inside today’s town.
Hamlets and corners on the map
Forty AcresGilchristMiddlegrove
Gone or out of use
Alden Mine Number 5mineAlden Mine Number 6mineClair SchoolschoolCottonwood SchoolschoolLiberty SchoolschoolMaplewood Mine Number 2mineNational MinemineNew Gilchrist SchoolschoolRetreat SchoolschoolShad Hill SchoolschoolWashington Schoolschool
4cemeteries and burying grounds inside Farmington Township
Chapin Pleasant HillCoal CreekHillProvidence Chapel
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Timeline
Farmington Township, 1834 to 1980
Woven from the archive, old maps, post office records, the National Register and the people born here.
Farmington was founded in 1834, with its post office being established on January 6, 1836. The area was first inhabited by members of the Potawatomi tribe. The city is named after Farmington, Connecticut.
Before and during the Civil War, the city was involved in the Underground Railroad, and there are several remaining homes that were safehouses. In the early 1900s, many Italian immigrants settled in Farmington.
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.
Every edition of the U.S. Geological Survey’s map of Farmington Township. Tap a year, or press play to watch the town change.
1912Canton 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 Farmington 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.
Retake this viewHOUSE IN, 1973
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Farmington Township’s page.
In 1834, according to Wikipedia’s history of the town. Farmington Township’s post office opened in 1834, and the census of 1880 counted 1,111 people here.
How does Farmington Township rank for history?
Farmington Township is more historic than 87% of U.S. towns, #108 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 Farmington Township?
32% of Farmington Township’s homes were built before 1940 (Census estimate, ±7.2 points), against a typical 11% for an Illinois town; the median home was built in 1957.
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 (7), 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.