New York

Allegany

46,456
2020 population
1810
first census record
22
census records

About Allegany

Allegany, New York, first appears in the United States federal census in 1810, when it recorded a population of 1,942. At the most recent census, in 2020, its population stood at 46,456.

Its recorded population peaked at 51,742 in 1980, and has since declined by roughly 10 percent.

On the ground today, 33 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202046,456
201048,946
200049,927
199050,470
198051,742
197046,458
196043,978
195043,784
194039,681
193038,025
192036,842
191041,412
190041,501
189043,240
188041,810
187040,814
186041,881
185037,808
184040,975
183026,276
18209,330
18101,942
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Historic places in Allegany

National Register of Historic Places listings in Allegany, New York.

Van Campen, Moses, House
Angelica
Terra Cotta Building
Alfred
Friendship Free Library
Friendship
Christ Episcopal Church
Belvidere
McKinney Stables of Empire City Farms
Cuba
Belmont Grange #1243
Belmont
Belvidere
Belmont
Steinheim, Alfred, Museum
Alfred
Caneadea Bridge
Caneadea
Rail and Titsworth Canal Warehouse
Belfast
Belmont Hotel
Belmont
Fireman's Hall
Alfred
Canaseraga Four Corners Historic District
Canaderaga
Ceres School
Ceres
Alfred Village Historic District
Alfred
Alumni Hall
Alfred
Wellsville Erie Depot
Wellsville
South Street Historic District
Cuba
US Post Office-Wellsville
Wellsville
Old Allegany County Courthouse
Angelica
Wellman House
Friendship
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Everything a full report reveals about Allegany County, New York

This page charts the census history of Allegany County, New York. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Allegany

When does Allegany first appear in the US census?
Allegany, New York first appears in the federal census in 1810, with a recorded population of 1,942.
What is the population of Allegany?
At the most recent federal census (2020), Allegany had a recorded population of 46,456.
When did Allegany's population peak?
Allegany's recorded population peaked at 51,742 in 1980.
How many historic places are in Allegany?
33 sites are listed on the National Register of Historic Places in Allegany, New York.
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