New York

Delaware

44,308
2020 population
1800
first census record
23
census records

About Delaware

Delaware, New York, first appears in the United States federal census in 1800, when it recorded a population of 10,228. At the most recent census, in 2020, its population stood at 44,308.

Its recorded population peaked at 48,055 in 2000, and has since declined by roughly 8 percent.

On the ground today, 4 documented military engagements have been recorded within the county, among them Raid on Unadilla (NY frontier), Destruction of Onaquaga (NY frontier), Harpersfield Raid, and 77 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202044,308
201047,980
200048,055
199047,225
198046,824
197044,718
196043,540
195044,420
194040,989
193041,163
192042,774
191045,575
190046,413
189045,496
188042,721
187042,972
186042,465
185039,834
184035,396
183033,024
182026,587
181020,303
180010,228
Source

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

Battles & engagements in Delaware

Military engagements that took place in Delaware, New York.

Raid on Unadilla (NY frontier)
1778
Destruction of Onaquaga (NY frontier)
1778
Harpersfield Raid
1780
Raid on Harpersfield
1780

Historic places in Delaware

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

McArthur-Martin Hexadecagon Barn
Bloomville
District 10 School
Margaretville
US Post Office-Delhi
Delhi
Main Street Historic District
Roxbury
Downsville Covered Bridge
Downsville
Rock Rift Fire Observation Tower
Tompkins
Christ Episcopal Church
Walton
Walton Grange #1454-Former Armory
Walton
Bloomville Methodist Epicopal Church
Bloomville
Christian Church
East Delhi
Woodchuck Lodge (Burroughs, John, Home)
Roxbury
Hamden Covered Bridge
Hamden
Hanford Mill
East Meredith
Hardenbergh, Isaac, House
Roxbury
Ravina
Lordville
St. Peter's Episcopal Church Complex
Hobart
Second Old School Baptist Church of Roxbury
Roxbury
Lower Shavertown Covered Bridge
Methol
Fitches Covered Bridge
East Delhi
Ulster and Delaware Railroad Depot and Mill Complex
Roxbury
West Kortright Presbyterian Church
West Kortright
Jackson-Aitken Farm
Andes
Hobart Masonic Hall
Hobart
Galli-Curci, Amelita, Estate
Fleischmanns
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Other counties in New York

Explore census history and historic records for more New York counties.

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Everything a full report reveals about Delaware County, New York

This page charts the census history of Delaware 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 Delaware

When does Delaware first appear in the US census?
Delaware, New York first appears in the federal census in 1800, with a recorded population of 10,228.
What is the population of Delaware?
At the most recent federal census (2020), Delaware had a recorded population of 44,308.
When did Delaware's population peak?
Delaware's recorded population peaked at 48,055 in 2000.
Were any battles fought in Delaware?
4 documented military engagements took place in Delaware, including Raid on Unadilla (NY frontier), Destruction of Onaquaga (NY frontier), Harpersfield Raid.
How many historic places are in Delaware?
77 sites are listed on the National Register of Historic Places in Delaware, New York.
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