29% of Mount Pleasant’s homes were built before 1940
More historic than 91% of U.S. towns · #246 of 758 in New York. What drives it
13 places in town are on the National Register, among them 3 National Historic Landmarks and four historic districts with 83 buildings between them. Below: 11 old photos and papers, maps from 1892 on, and the census since 1790.
On its age, its old homes and the National Register, Mount Pleasant is more historic than 91% of U.S. towns, #246 of 758 in New York. All 2 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 Mount Pleasant’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 Mount Pleasant’s 21.2 sits near the middle of its state (57% of New York towns have fewer) while its 95 historic buildings outnumber those of 89% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share (±2.3 points) is firm at this size.
Founding year: our sources. 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 Mount Pleasant’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Apple Hill FarmlocaleArchville SchoolschoolBear Ridge SchoolschoolBrace Memorial SchoolschoolCentral Methodist Episcopal ChurchchurchEastview SchoolschoolFirst Church of Christ ScientistchurchHarvey SchoolschoolMartha HomebuildingRockwood Hall Country ClublocaleSchool Number 11schoolSleepy Hollow SchoolschoolWartburg Orphanagebuilding
9cemeteries and burying grounds inside Mount Pleasant
All SoulsBanksGate of HeavenKensicoMount EdenMount PleasantOld MethodistPalmerSleepy Hollow
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
People over time
Mount Pleasant, census by census
Lost half of its people between 1840 and 1850, then grew more than tenfold.
22 censuses, 1790–2020.
U.S. Census Bureau decennial counts, from the census table on Mount Pleasant’s Wikipedia page.
The John D. Rockefeller Estate Kykuit in Pocantico Hills was added to the National Register of Historic Places in 1976 as a National Historic Landmark.
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 Mount Pleasant. 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 Mount Pleasant.
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 viewNear Mount Pleasant, 1809
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Mount Pleasant’s page.
Mount Pleasant is more historic than 91% of U.S. towns, #246 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.
What is on the National Register in Mount Pleasant?
13 listings, 3 of them National Historic Landmarks: 8 buildings, among them the Dutch Reformed Church (a National Historic Landmark since 1961), 4 historic districts with 83 contributing buildings, and 1 structure. 95 historic buildings in all.
How old are the homes in Mount Pleasant?
29% of Mount Pleasant’s homes were built before 1940 (Census estimate, ±2.3 points), against a typical 27% for a New York 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 (9), the Library of Congress (8), Wikidata (1), the National Register of Historic Places (13), Wikipedia, Wikidata and Wikipedia for famous people, 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.