Founding year: the first Tarrytown post office (Blevins & Helbock, CC0). Wikidata: 1870.The full story ↓
History grade
What drives Tarrytown’s History grade
On its age, its old homes and the National Register, Tarrytown is more historic than 90% of U.S. towns, #268 of 758 in New York. 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 Tarrytown’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 Tarrytown’s 31.4 sits near the middle of its state (63% of New York towns have fewer) while its 37 historic buildings outnumber those of 83% 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 (±5.4 points). The founding year is the first post office, not a stated founding date; Wikidata gives 1870.
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 Tarrytown’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Tarrytown. Tap a year, or press play to watch the town change.
1892Tarrytown 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 Tarrytown.
Every building
Tarrytown, building by building, 1887–1915
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
The Native American Wecquaesgeek band of the Wappinger people, related to the Mohicans, lived in the area prior to European settlement. The Wecquaesgeek fished the Hudson River for shad, oysters and other shellfish. Their settlement in present-day Tarrytown was most probably at what is now the foot of Church Street near the Hudson River shore, at a place they called Alipconk (also spelled Alipconck) or the "Place of Elms".
The Tarrytown post office opened in 1832, the earliest record of the town by name (U.S. post office records). Wikidata gives 1870.
How does Tarrytown rank for history?
Tarrytown is more historic than 90% of U.S. towns, #268 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 Tarrytown?
29% of Tarrytown’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 1955.
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 (10), Wikidata (2), Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.