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History · Bardonia

Bardonia’s post office opened in 1888, and 2 of its places are on the National Register

Most of Bardonia was built recently: 3% of its homes predate 1940 and the median home dates from 1974.

1888first post office
2on the National Register
3%homes built before 1940
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Quick answers

How Bardonia began

When was Bardonia founded?

1888

The Bardonia post office opened in 1888, the earliest record of the town by name.

2020 census: 4,249138 years
Founding year: the first Bardonia post office (Blevins & Helbock, CC0).

What stands out about Bardonia’s past

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

A history waiting to be writtenNo old photos of Bardonia are in the public archives yet. The rest are in attics and albums.
★ What stands out · Help out

Start Bardonia’s collection

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

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

Bardonia, in brief

Wikipedia doesn’t have a history of Bardonia yet. The photos, dates and memories neighbors add here are how it gets written.

Bardonia is a hamlet and census-designated place in the town of Clarkstown, Rockland County, New York, United States. It is located northeast of Nanuet, northwest of West Nyack, south of New City, and west of Valley Cottage. As of the 2020 census, Bardonia had a population of 4,249. Bardonia is north of the New York State Thruway. Bardonia is named for the Bardon brothers - John and the twins Phillip and Conrad - who came from Bavaria in 1849 and opened several businesses. The Bardonia railroad station, which no longer exists, was opened there in 1875.

Its first post office opened in 1888. Between the 2010 and 2020 censuses its population grew from 4,108 to 4,249 (+3%).

Intro from Wikipedia. Population: U.S. Census Bureau.

By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
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On the National Register

2 listings protect 22 historic buildings

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

places listed
2
National Historic Landmarks
0
none yet
historic buildings protected
22
each building in a district counts

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

Stories next door

History across the town line

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

New City7 historic placesnot graded: under 1,000 residents or part of its townValley CottageIts storynot graded: under 1,000 residents or part of its townNanuetIts storynot graded: under 1,000 residents or part of its townWest Nyack3 historic placesnot graded: under 1,000 residents or part of its townCongersIts storynot graded: under 1,000 residents or part of its town

Questions about Bardonia’s history

What year was Bardonia founded?

The Bardonia post office opened in 1888, 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 →
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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 →