Delaware County, New York

County seat: Delhi · Population 44,305 (2025) · 1,443 sq mi

Delaware County is the 53rd most populous of New York's 62 counties, with 44,305 people (2025 estimate). Its county seat is Delhi. The map shows its 10 cities and towns and the 8 neighboring counties.

Map of Delaware County, New York with cities, towns and the county boundary
Delaware County, New York with its cities and towns, unincorporated communities (CDPs) and neighboring counties. Boundaries: U.S. Census Bureau, 2025. Free to use with attribution (CC BY 4.0).
Download PDF (Letter) 120 KBPNG image 94 KBNew York county map

Delaware County facts

County seat
Delhi
Population (2025 estimate)
44,305 +0% since 2020
Land area
1,443 sq mi 5th largest of 62
Water area
25 sq mi
Population density
31 per sq mi
Established
1797
Same name
One of 6 Delaware Counties in the US
Named after
Delaware River major river on the East coast of the United States of America
Largest city
Delhi 5,545
Median household income
$63,337
Cities and towns
10 plus 4 CDPs
ZIP codes
47
Time zone
Eastern
FIPS code
36025

Cities and towns in Delaware County

Delaware County has 10 incorporated cities, towns and villages. Populations count the people living inside Delaware County; cities that cross a county line also list the other counties.

NameTypePopulation 2025Also in
SidneyVillage3,588
Delhi (county seat)Village3,526
WaltonVillage2,824
StamfordVillage1,034
HancockVillage885
DepositVillage662Broome County
MargaretvilleVillage485
HobartVillage384
FranklinVillage269
FleischmannsVillage223

Unincorporated communities (CDPs)

Census-designated places are communities without their own city government; the county provides their services.

CommunityPopulationAlso in
Davenport Center414
Bloomville289
Downsville163
Andes151

ZIP codes in Delaware County

47 ZIP codes reach into Delaware County. ZIP codes ignore county lines, so some also cover a neighboring county.

Population of Delaware County, 2020–2025

Delaware County grew by 10 people (+0%) between April 2020 and July 2025: 1,464 more deaths than births and a net gain of 1,498 people from migration.

Year (July 1)Population
202044,215
202144,736
202244,771
202344,533
202444,481
202544,305

Neighboring counties

Printable Delaware County map

The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.

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Sources

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