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St. Lawrence County Route 14 - New YorkPhoto: Doug Kerr · CC BY-SA 2.0
–Not graded
History · Rensselaer Falls

Rensselaer Falls’ post office opened in 1851, and 62% of its homes were built before 1940

1 place in town is on the National Register. Below: 1 old photo or paper, maps from 1904 on, and the census since 1920.

1851first post office
1on the National Register
62%homes built before 1940
1old photo or paper
From Rensselaer Falls’ archive · credits on each photo
Quick answers

How Rensselaer Falls began

When was Rensselaer Falls founded?

1851

The Rensselaer Falls post office opened in 1851, the earliest record of the town by name.

First census: 328 in 19202020 census: 361175 years
Founding year: the first Rensselaer Falls post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Rensselaer Falls’ past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Rensselaer Falls’s collection

The first neighbors to add old photos shape how Rensselaer Falls’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
The story

How Rensselaer Falls came to be

From Wikipedia’s history of Rensselaer Falls.

Read it all →

A six-foot (1.8 m) drop in the river attracted early settlers to the available water power. The community was first called "Tateville" and later "Canton Falls." The current name was established by the post office in 1851.

The Congregational Church was listed on the National Register of Historic Places in 2005.

Text from Wikipedia, licensed CC BY-SA 4.0.

On the map

Rensselaer Falls on the map, 1904 to 1963

Every edition of the U.S. Geological Survey’s map of Rensselaer Falls. Tap a year, or press play to watch the town change.

Rensselaer Falls on the 1904 USGS mapRensselaer Falls on the 1943 USGS mapRensselaer Falls on the 1963 USGS map1904Ogdensburg 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 Rensselaer Falls.

By decade

Rensselaer Falls, decade by decade

One decade in the archive so far: the 1860s. Scroll each row; tap a photo for its story.

Every building

Rensselaer Falls, building by building, 1913–1927

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.

Rensselaer Falls fire insurance map, 1913, sheet 11913Sheet 1 of 1
Edition
Sheets
BrickWoodStone

Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.

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.

Brasher Falls (Village); Brasher Business Directory.; Brasher Iron Works (Village); Brasher Iron Works Business Directo…
Retake this viewBrasher Falls (Village); Brasher Business Directory.; Brasher Iron Works (Village); Brasher Iron Works Business Directo…, 1865

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Rensselaer Falls’ page.

Retake this view · +15
On the National Register

1 historic place in Rensselaer Falls

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

People over time

Rensselaer Falls, census by census

0100200300400192019401960198020002020Peak: 375

Between 265 and 375 people in every census since 1920.

11 censuses, 1920–2020.

U.S. Census Bureau decennial counts, from the census table on Rensselaer Falls’ Wikipedia page.

Famous people

Famous people close to Rensselaer Falls

Nobody well known was born in Rensselaer Falls itself, so here are the best known from just nearby.

See all →

Questions about Rensselaer Falls’ history

What year was Rensselaer Falls founded?

The Rensselaer Falls post office opened in 1851, the earliest record of the town by name (U.S. post office records).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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). How TownRatings grades history →

From Wikimedia Commons (3), Wikipedia, 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.