The Green Garden Township post office opened in 1851, the earliest record of the town by name. Another post office, Green Garden (1851), opened inside today’s town and later closed.
2020 census: 3,893175 years
How historic is Green Garden Township?
C
More historic than 30% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Green Garden Township post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Green Garden Township’s History grade
On its age, its old homes and the National Register, Green Garden Township is more historic than 30% of U.S. towns, #558 of 768 in Illinois. 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 Green Garden 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 Green Garden Township’s 0.0 sits below most of its state (28% of Illinois 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 (±8.3 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 Green Garden Township’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Green Garden Township was organized in 1853. Prior to that, it had been called Thornton, and "was included with Manhattan under the name of Carey."
Sparsely inhabited Green Garden was one of the last places in Will County to be occupied by settlers, due to its lack of timber.
On May 26, 1917, Green Garden Township was hit by a devastating cyclone. The cyclone, which appeared to have multiple tornadoes, was visible from neighboring Peotone, and left a two to three mile wide path of destruction and crop damage as it moved from west to east through Will County.
Every edition of the U.S. Geological Survey’s map of Green Garden Township. Tap a year, or press play to watch the town change.
1930Frankfort sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Green Garden Township.
Famous people
Famous people close to Green Garden Township
Nobody well known was born in Green Garden Township itself, so here are the best known from just nearby.
The Green Garden Township post office opened in 1851, the earliest record of the town by name (U.S. post office records).
How does Green Garden Township rank for history?
Green Garden Township is more historic than 30% of U.S. towns, #558 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 Green Garden Township?
11% of Green Garden Township’s homes were built before 1940 (Census estimate, ±8.3 points), against a typical 11% for an Illinois town; the median home was built in 1998.
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 Wikipedia, 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.
