Hamilton County, New York

Hamilton County: county in New York, United States

About

Hamilton County is a county located in the U.S. state of New York. As of the 2010 census, the population was 4,836 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 4,345 inhabitants. Its county seat is Lake Pleasant (hamlet), New York. The county was created 179 years ago in 1846.

Hamilton County locator map
Location of Hamilton County on New York map.

County Snapshot

Hamilton County at a glance

Hamilton County currently has 9 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

9

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Hamilton County

Population 4,345 (2020)
Country United States of America
State New York (United States)
Different from Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County, Hamilton County
Area 4682 km2
Water as percent of area 5%
Land as percent of area 95%
Latitude & Longitude 43.6611,-74.4974
Named for Alexander Hamilton
Capital Lake Pleasant (hamlet), New York
Establishment January 01, 1847
Time Zone America/New_York
Local time 21:05:25 (18th April 2026)
Density 1 Pop. per km² as of 2020
Population growth -11.3% (2010-2020)
Weather 66℉ Mostly Sunny 7-days weather
Hamilton County Courthouse and Clerks Office NY Aug 10 image
Hamilton County Courthouse and Clerks Office NY Aug 10 image

Geography

Hamilton County is located at 43°39'40"N 74°29'50"W (43.6611200, -74.4973600). It has 7 neighbors: Warren County, Essex County, Franklin County, Fulton County, Herkimer County, St. Lawrence County and Saratoga County.

Hamilton County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Hamilton County is Indian Lake with a population of 1,216. Other cities include, Lake Pleasant population 710, Long Lake population 636, Wells population 613 and Hope population 357. See all Hamilton County cities & populated places.

Hamilton County Populated Places

Cities, towns, neighborhoods & other populated places in Hamilton County.

City Name Population Title
Indian Lake 1,216 Town in Hamilton County, New York, United States
Lake Pleasant 710 Human settlement in Hamilton County, New York, United States of America
Long Lake 636 Town in Hamilton County, New York, United States
Wells 613 Town in New York, USA
Hope 357 Town in New York, United States
Inlet 301 Town in New York, United States
Speculator 297 Human settlement in Hamilton County, New York, United States of America
Arietta 269 Human settlement in Hamilton County, New York, United States of America
Benson 169 Town in New York State

Weather

66°F
Mostly Sunny
7 to 14 mph SE Today

Mostly sunny, with a high near 66. Southeast wind 7 to 14 mph, with gusts as high as 28 mph.

7-Day Forecast

Official website of Hamilton County

Official Website

Demographics

According to census records, the population of Hamilton County decreased by 11.3% in 10 years.

Year Population % Change Method
2010 4,836 - census
2011 4,826 -0.21% estimation process
2012 4,803 -0.48% estimation process
2013 4,766 -0.78% estimation process
2014 4,700 -1.4% estimation process
2015 4,699 -0.02% estimation process
2016 4,556 -3.14% estimation process
2017 4,471 -1.9% estimation process
2018 4,432 -0.88% estimation process
2019 4,416 -0.36% estimation process
2020 4,345 -1.63% estimation process
Comitatul Hamilton, Comte de Hamilton, Comté de Hamilton, Condado de Hamilton, Condado han Hamilton, Contea di Hamilton, Gamil'ton, Hamilton, Hamilton Comitatus, Hamilton Kun, Hamilton Kūn, Hamilton konderria, Hamilton megye, Hamilton srjan, Hrabstwo Hamilton, Khamiltun, Okrug Khamilton, Quan Hamilton, Quận Hamilton, hamiruton jun, han mi er dun xian, hyamilatana ka'unti, mqatʿt hamyltwn, shhrstan hmyltwn nywywrk, Гамильтон, Гамільтон, Округ Хамилтон, Хамилтън, Համիլտոն շրջան, شهرستان همیلتون، نیویورک, مقاطعة هاميلتون, ہیملٹن کاؤنٹی, ہیملٹن کاؤنٹی، نیویارک, হ্যামিলটন কাউন্টি, ハミルトン郡, 漢密爾頓縣

People born in Hamilton County (1)

United States federal judge Hiram V. Willson was born in Hamilton County

Other places with the same name (9)

New York Other Counties (more counties)

County Name Population Title
New York City 8,398,748 The most populous city in the United States and the center of the New York metropolitan area.
Brooklyn 2,577,000 A borough of New York City.
Queens 2,339,150 The most populous borough of New York City.
Queens County 2,225,821 County in New York, United States
Manhattan 1,644,518 The most densely populated borough of New York City.
New York County 1,611,989 County in New York state, United States of America
Suffolk County 1,474,273 County in New York, United States
The Bronx 1,455,720 The fourth most populous borough of New York City.
Bronx County 1,401,142 Borough of New York City, United States
Nassau County 1,351,334 County in New York, United States
Westchester County 965,802 County in New York, United States.
Erie County 917,241 County in New York, United States
Hempstead 764,055 Located in Nassau County, New York, this hamlet and village is a major commercial and transportation hub.
Monroe County 740,900 County in Florida, United States
Brookhaven 479,883 This town in Suffolk County, New York, is the most populous in the state.
Richmond County 475,327 County in Georgia, United States