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History · Glasco

Glasco’s post office opened in 1830, and 12% of its homes were built before 1940

Below: maps from 1895 on and the census since 2000.

1830first post office
0on the National Register
12%homes built before 1940
Quick answers

How Glasco began

When was Glasco founded?

1830

The Glasco post office opened in 1830, the earliest record of the town by name.

First census: 1,692 in 20002020 census: 2,013196 years
Founding year: the first Glasco post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Glasco’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 Glasco’s collection

The first neighbors to add old photos shape how Glasco’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

Glasco on the map, 1895 to 1997

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

Glasco on the 1895 USGS mapGlasco on the 1934 USGS mapGlasco on the 1941 USGS mapGlasco on the 1963 USGS mapGlasco on the 1997 USGS map1895Catskill 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 Glasco.

The story

How Glasco came to be

From Wikipedia’s history of Glasco.

Read it all →

Glasco's name was taken from a glass company located in the mountain area several miles inland. The glass was carried by horse down the "Glasco Turnpike" to the banks of the Hudson where it was shipped on for ports of sale. The settlement along the river where the glass was loaded became known as Glasco.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Glasco in 1880

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

quarrying the stone he buys, and in his mill, and on his yard at. Malden, where he employs, on an average, 125 more. During the summer season his pay-roll at Malden alone amounts to nearly $1000 per week. He purchases stone at Malden, Saugerties, and Glasco, also on the line of the Ulster and Delaw…
History of Ulster County, New York, with illustrations and biographical sketches of its prominent men and pioneers1880Read the page →
Read the text

quarrying the stone he buys, and in his mill, and on his yard at. Malden, where he employs, on an average, 125 more. During the summer season his pay-roll at Malden alone amounts to nearly $1000 per week. He purchases stone at Malden, Saugerties, and Glasco, also on the line of the Ulster and Delaware Railroad, on the Delaware and Hudson Canal, on the Erie Railroad and several of its connections, the stone reaching tide-water from the latter source at Newburg, Jersey City, and Newark, lie has wholesale depots at Roch-

Text read by machine from the scan; it may contain errors.
During the summer season his pay-roll at Malden alone amounts to over one thousand dollars per week. His stone is purchased at Malden, Saugerties, and Glasco, also on the line of the Ulster aud Delaware Railroad, on the Delaware and Hudson Canal, on the Erie Railroad, and several of ins connections…
History of Ulster County, New York, with illustrations and biographical sketches of its prominent men and pioneers1880Read the page →
Read the text

During the summer season his pay-roll at Malden alone amounts to over one thousand dollars per week. His stone is purchased at Malden, Saugerties, and Glasco, also on the line of the Ulster aud Delaware Railroad, on the Delaware and Hudson Canal, on the Erie Railroad, and several of ins connections, the material reaching tide-water from the latter source at Newburgh, Jersey City, and Newark, N .J. He has wholesale depots at Rochester, on the Erie Canal, at

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.

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.

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People over time

Glasco, census by census

05001,0001,5002,00020002020Peak: 2,099

Between 1,692 and 2,099 people in every census since 2000.

3 censuses, 2000–2020.

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

Famous people

Famous people close to Glasco

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

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Stories next door

History across the town line

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

Questions about Glasco’s history

What year was Glasco founded?

The Glasco post office opened in 1830, 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 →

From Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.