Founding year: Wikipedia. First post office: 1822.The full story ↓
History grade
What drives Granby’s History grade
On its age, its old homes and the National Register, Granby is more historic than 53% of U.S. towns, #650 of 758 in New York. Its age holds the grade up; its National Register listings pull it down.
B−
HistoryA character grade: shown, never part of Granby’s overall grade.
New York towns list more on the Register than most of the country (a typical New York town has 12.3 per 10,000 residents, the U.S. 2.4), so Granby’s 0.0 sits below most of its state (10% of New York towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
NoteThe founding year comes from Wikipedia alone; no second source gives 1792.
How sure. Graded on any two of the three inputs instead, the letter would range from C to A−. The pre-1940 share is a Census survey estimate (±5.4 points).
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 Granby’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
Granby had its own post office from 1822 to 1841. Six other post offices opened and closed inside today’s town.
Granby
1822–1841
Six Mile Creek
1836–1843
Hinmansville
1843–1908
South Granby
1849–1920
Granby Centre
1851–1906
Bowens Corners
1856–1906
Dexterville
1875–1906
18201920today
Hamlets and corners on the map
Bowens CornersDextervilleEason Mobile Home ParkFox Meadow Mobile Home ParkGranby CenterHinmansvilleIndian Hills Mobile Home ParkLewis CornersPember CornersSouth GranbyWoodland Mobile Home Park
Gone or out of use
School Number 1schoolSchool Number 10schoolSchool Number 11schoolSchool Number 12schoolSchool Number 13schoolSchool Number 14schoolSchool Number 15schoolSchool Number 16schoolSchool Number 17schoolSchool Number 2schoolSchool Number 3schoolSchool Number 5schoolSchool Number 6schoolSchool Number 7schoolSchool Number 8schoolSchool Number 9school
3cemeteries and burying grounds inside Granby
Granby CenterLewisMerritt
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Help out
Start Granby’s collection
The first neighbors to add old photos shape how Granby’s history is told.
Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The town was first settled circa 1792. Granby was created in 1818 from the Town of Hannibal and part of the Town of Lysander in Onondaga County. A small northern part of the town was lost to the Town of Oswego in 1836. Although first settled in 1792, it was actually discovered many years later by John Bradshaw (cricketer) (1812–1880), first-class cricketer and cleric, from Granby, Nottinghamshire and whom, after his discovery, returned triumphantly to England and became Vicar of Granby-cum-Sutton in 1845.
Passages that mention Granby, cut from the printed page as they were published.
... History of Oswego County, New York1877 · page 392Read the page →
Read the text
that the great town of Hannibal, which contained over a hundred square miles, would bear division. Accordingly, by an act passed on the 20th day of April, 1818, two new towns were formed from Hannibal, — Oswego and Granby. The latter included the thirty-three lots of the old surveytownship of Lysander, which had previously been a part of the political town of Hannibal, and nineteen lots of the survey-township of Hannibal; that is to say, it included all
Text read by machine from the scan; it may contain errors.
... History of Oswego County, New York1877 · page 43Read the page →
Read the text
Readers must always bear in mind the difference between a survey township and a political town. The survey township of Hannibal comprLsed the present towns of Hannibal and Oswego, and a small part of Granby, in Oswego County, and the town of Sterling, in Cayuga county. Lysander embraced the greater part of Granby, in Oswego County, the present town of Lysander, and part of another in Onondaga county.
Text read by machine from the scan; it may contain errors.
Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.
Timeline
Granby, 1792 to 1990
Woven from the archive, old maps, post office records, the National Register and the people born here.
In 1792, according to Wikipedia’s history of the town. Granby’s post office opened in 1822, and the census of 1820 counted 555 people here.
How does Granby rank for history?
Granby is more historic than 53% of U.S. towns, #650 of 758 in New York. 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 Granby?
16% of Granby’s homes were built before 1940 (Census estimate, ±5.4 points), against a typical 27% for a New York town; the median home was built in 1972.
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 (2), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.
1867
