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History · Fort Johnson

Fort Johnson’s post office opened in 1828, and 70% of its homes were built before 1940

1 place in town is on the National Register. Below: 2 old photos and papers, maps from 1895 on, and the census since 1910.

1828first post office
1on the National Register
70%homes built before 1940
2old photos & papers
From Fort Johnson’s archive · credits on each photo
Quick answers

How Fort Johnson began

When was Fort Johnson founded?

1828

The Fort Johnson post office opened in 1828, the earliest record of the town by name.

First census: 600 in 19102020 census: 401198 years
Founding year: the first Fort Johnson post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Fort Johnson’s past

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

★ What stands out · Help out

Start Fort Johnson’s collection

The first neighbors to add old photos shape how Fort Johnson’s history is told.

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

Fort Johnson on the map, 1895 to 1980

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

Fort Johnson on the 1895 USGS mapFort Johnson on the 1931 USGS mapFort Johnson on the 1947 USGS mapFort Johnson on the 1954 USGS mapFort Johnson on the 1980 USGS map1895Amsterdam 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 Fort Johnson.

The story

How Fort Johnson came to be

From Wikipedia’s history of Fort Johnson.

Read it all →

Around 1710, Palatine Germans began trying to settle here. Most were working in an English camp along the Hudson to pay back their passage by ship from London. In 1716, the Mohawk sold a portion of the land to Philip Groat (it is now in the eastern part of the town of Amsterdam). This part of New York was Mohawk territory for centuries before European colonization. In 1739, William Johnson, a British Army officer from Ireland and colonial administrator who had previously lived closer to Amsterdam, purchased land including the site of the village. He established a mill in 1744. The original name of the settlement was "Mount Johnson".

Text from Wikipedia, licensed CC BY-SA 4.0.

By decade

Fort Johnson, decade by decade

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.

A north view of Fort Johnson drawn on the spot by Mr. Guy Johnson, Sir Wm. Johnson's son
Retake this viewA north view of Fort Johnson drawn on the spot by Mr. Guy Johnson, Sir Wm. Johnson's son

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

Retake this view · +15
On the National Register

1 historic place in Fort Johnson

The country’s official list of buildings and places worth saving. One is a National Historic Landmark, the highest tier.

place listed
1
National Historic Landmark
1
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

Fort Johnson, census by census

02004006008001,000192019401960198020002020Peak: 930

Peaked at 930 in 1950; 401 people lived here in 2020.

12 censuses, 1910–2020.

U.S. Census Bureau decennial counts, from the census table on Fort Johnson’s Wikipedia page.

Famous people

Famous people close to Fort Johnson

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

See all →
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Questions about Fort Johnson’s history

What year was Fort Johnson founded?

The Fort Johnson post office opened in 1828, 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 (1), the Library of Congress (1), Wikipedia, U.S. Geological Survey historical maps and U.S. Census counts (via Wikipedia). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.