Guest, Sign inJoin

Post to Jefferson

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
AHistory
History · Jefferson

Jefferson’s post office opened in 1819, and 26% of its homes were built before 1940

More historic than 94% of U.S. towns. What drives it

4 places in town are on the National Register, among them a historic district with 108 buildings. Below: 2 old photos and papers, maps from 1904 on, and the census since 1820.

1819first post office
4on the National Register
26%homes built before 1940
2old photos & papers
Quick answers

How Jefferson began

When was Jefferson founded?

1819

The Jefferson post office opened in 1819, the earliest record of the town by name. Another post office, South Jefferson (1866), opened inside today’s town and later closed.

First census: 1,573 in 18202020 census: 1,333207 years

How historic is Jefferson?

A

More historic than 94% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Jefferson post office (Blevins & Helbock, CC0).The full story ↓
History grade

What drives Jefferson’s History grade

On its age, its old homes and the National Register, Jefferson is more historic than 94% of U.S. towns. All 3 inputs are above most U.S. towns; its National Register listings ranks highest and its age lowest.

A
HistoryA character grade: shown, never part of Jefferson’s overall grade.
All U.S. towns we grade (21,289)Ahead of 94%
NewerOlder

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 Jefferson’s 905 sits above most of its state (95% of New York towns have fewer) while its 111 historic buildings outnumber those of 90% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would still be A. The pre-1940 share is a Census survey estimate (±6.2 points). The founding year is the first post office, not a stated founding date.

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 Jefferson’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 Jefferson’s collection

The first neighbors to add old photos shape how Jefferson’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 National Register

4 listings protect 111 historic buildings

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

places listed
4
National Historic Landmarks
0
none yet
historic buildings protected
111
each building in a district counts
first listed
1984
Parker 13-Sided Barn
All 4 listings

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

People over time

Jefferson, census by census

05001,0001,5002,0001850190019502000Peak: 2,033

Peaked at 2,033 in 1840; 1,333 people lived here in 2020.

21 censuses, 1820–2020.

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

The story

How Jefferson came to be

From Wikipedia’s history of Jefferson.

Read it all →

The town was unoccupied by settlers during the American Revolution, first being settled around 1793 by New Englanders.

In 1803, the town was created from part of the Town of Blenheim.

The First Presbyterian Church of Jefferson and Parker 13-Sided Barn are listed on the National Register of Historic Places.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Jefferson, 1878–1905

Passages that mention Jefferson, cut from the printed page as they were published.

During his boyhood andearly manhood Merritt A. Cleveland worked upon his father's farms, attending school at Houndsfield, Brownville, Dexter and Watertown, all in Jefferson county, until 1869. The following year he joined the civil engineering corps of the Carthage, Watertown and Sackett's Harbor R…
Genealogical and family history of the county of Jefferson, New York1905Read the page →
Read the text

During his boyhood andearly manhood Merritt A. Cleveland worked upon his father's farms, attending school at Houndsfield, Brownville, Dexter and Watertown, all in Jefferson county, until 1869. The following year he joined the civil engineering corps of the Carthage, Watertown and Sackett's Harbor Railroad, where he was employed in constructing the. railroad, and later was employed by the Clayton and Theresa Railroad and also by the Watertown Water Works, and' employed in the .city engineer's office the first year that Watertown was in-

Text read by machine from the scan; it may contain errors.
short time, and in advance of his family in the year 1797 he with David Starr and others came and took up timber land in the town of Champion, this county,, and is said to be the first man who chopped a, tree in Jefferson County for the purpose of settlement, and consequently was its first settler.…
History of Jefferson County, New York1878 · page 186Read the page →
Read the text

short time, and in advance of his family in the year 1797 he with David Starr and others came and took up timber land in the town of Champion, this county,, and is said to be the first man who chopped a, tree in Jefferson County for the purpose of settlement, and consequently was its first settler. In 1799 he moved his family thither, and began a pioneer life in a trackless wilderness. Struggling with poverty and the hardships coincident with a new country, he carved out a fine

Text read by machine from the scan; it may contain errors.
It will be noticed by reference that the present town of Pinckney, in Lewis county, organized February 12, 1808 then a part of the town of Harrison, in Jefferson, was then divided by a line that was a continuation of the west lines of townships 8 and 3, of Boylston's tract; and that from the line b…
History of Jefferson County, New York1878 · page 68Read the page →
Read the text

It will be noticed by reference that the present town of Pinckney, in Lewis county, organized February 12, 1808 then a part of the town of Harrison, in Jefferson, was then divided by a line that was a continuation of the west lines of townships 8 and 3, of Boylston's tract; and that from the line between Champion and Denmark, on Black river, the division ran straight to St. Lawrence county, where the line of townships 7 and 11, of tract III., touched the

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

Jefferson, 1819 to 1912

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1819Post officeThe Jefferson post office opens
  3. 1828BuiltStewart House and Howard-Stewart Family Cemetery is built
  4. 1837BuiltFirst Presbyterian Church of Jefferson is built
  5. 1840CensusPopulation peaks at 2,033
  6. 1866In the archiveJefferson (Township)
  7. 1866Post officeThe South Jefferson post office opens
  8. 1896BuiltParker 13-Sided Barn is built
  9. 20th century
  10. 1904On the mapFirst mapped by the U.S. Geological Survey
  11. 1912Post officeThe South Jefferson post office closes
By decade

Jefferson, decade by decade

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

On the map

Jefferson on the map, 1904 to 1982

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

Jefferson on the 1904 USGS mapJefferson on the 1945 USGS mapJefferson on the 1982 USGS map1904Hobart 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 Jefferson.

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.

Jefferson (Township)
Retake this viewJefferson (Township), 1866

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

Retake this view · +15
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Jefferson’s post office has been open since 1819. Another post office, South Jefferson, opened and closed inside today’s town.

Jefferson
1819–today
South Jefferson
1866–1912
18101920today
Hamlets and corners on the map
ArabiaEast JeffersonSouth JeffersonVorman CornersWest Jefferson
Gone or out of use
Clapper Hollow SchoolschoolFuller District School Number FourschoolSchool Number 9school
7cemeteries and burying grounds inside Jefferson
CowleyEvergreenHoly CrossJeffersonMaynardPotter HillWest Jefferson

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Stories next door

History across the town line

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

Questions about Jefferson’s history

What year was Jefferson founded?

The Jefferson post office opened in 1819, the earliest record of the town by name (U.S. post office records).

How does Jefferson rank for history?

Jefferson is more historic than 94% of U.S. towns. 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 Jefferson?

4 listings: 3 buildings, among them the Parker 13-Sided Barn (listed 1984, the first), and 1 historic district, the Jefferson Historic District, with 108 contributing buildings. 111 historic buildings in all.

How old are the homes in Jefferson?

26% of Jefferson’s homes were built before 1940 (Census estimate, ±6.2 points), against a typical 27% for a New York town; the median home was built in 1978.

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).

From Wikimedia Commons (28), the National Register of Historic Places (4), 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.