What is the population of Erie County?

The population of Erie County, NY is 917,241.

Where is Erie County located?

Erie County, NY is located at latitude 42.7582400 and longitude -78.7796600. It is in United States.

What is the area of Erie County?

The area of Erie County, NY is 3178 km².

What is the elevation of Erie County?

Erie County, NY has an elevation of 239 meters (784 feet) above sea level.

What time zone is Erie County in?

Erie County, NY is in the America/New_York time zone.

How has the population of Erie County changed?

The population of Erie County, NY has decreased from 919,040 (2010) to 917,241 (2020), a change of -0.2%.

Erie County, New York

Erie County: county in New York, United States

About

Erie County is a county located in the U.S. state of New York. As of the 2010 census, the population was 919,040 and a population density of 289 people per km². After 10 years in 2020 county had an estimated population of 917,241 inhabitants. Its county seat is Buffalo. The county was created 205 years ago in 1820.

Erie County locator map — Location of Erie County on New York map.

County Snapshot

Erie County at a glance

Erie County currently has 44 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

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

New York counties

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Largest city

Buffalo

Population 254,479

Quick Facts about Erie County

Population	917,241 (2020)
Country	United States of America
State	New York (United States)
Different from	Erie County, Erie County
Twitter username	ErieCountyNY
Area	3178 km²
Water as percent of area	15%
Land as percent of area	85%
Latitude & Longitude	42.7582,-78.7797
Named for	Lake Erie
Altitude	853 feet / 260 meters
Capital	Buffalo
Establishment	January 01, 1821
Time Zone	America/New_York
Local time	04:51:27 (19th April 2026)
Density	289 Pop. per km² as of 2020
Population growth	-0.2% (2010-2020)
Weather	43℉ Chance Rain Showers 7-days weather

Old County Hall Buffalo NY image

Geography

Erie County is located at 42°45'30"N 78°46'47"W (42.7582400, -78.7796600). It has 4 neighbors: Cattaraugus County, Chautauqua County, Genesee County and Niagara County.

Erie County map

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The largest city of Erie County is Buffalo with a population of 254,479. Other cities include, Amherst population 120,809, Cheektowaga population 85,452, Hamburg population 58,800 and West Seneca population 45,117. See all Erie County cities & populated places.

Erie County Populated Places (more)

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

City Name	Population	Title
Buffalo	254,479	The second most populous city in New York.
Amherst	120,809	Town in New York, United States
Cheektowaga	85,452	Town in Erie County, New York, United States
Hamburg	58,800	Town in Erie County, New York, United States
West Seneca	45,117	Town in Erie County, New York
Brighton	35,776	Town in Monroe County, New York, USA
Clarence	33,026	Town in Erie County, New York, United States
Grand Island	21,767	Town in New York
Lackawanna	17,632	City in New York, USA
Kenmore	14,947	City in Erie County, New York, United States of America
Depew	14,940	City in Creek County, Oklahoma, United States of America
Tonawanda	14,755	City in the state of New York, USA
Elma	11,752	City in New York, United States of America
Lancaster	10,064	Town in Erie County, New York
Alden	9,911	City in Freeborn County, Minnesota, United States of America
Ellicott	8,223	City in Chautauqua County, New York, United States of America

Weather

43°F

Chance Rain Showers

8 to 12 mph W Sunday

A chance of rain showers. Mostly cloudy, with a high near 43. West wind 8 to 12 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

7-Day Forecast

Official website of Erie County

Official Website Twitter

Erie County has 4 neighbours.

Cattaraugus County county in New York, United States
Chautauqua County county in New York, United States of America
Genesee County county in New York, United States
Niagara County county in New York, United States

Buffalo

Demographics

According to census records, the population of Erie County decreased by 0.2% in 10 years.

Year	Population	% Change	Method
2010	919,040	-	census
2011	919,843	0.09%	estimation process
2012	919,906	0.01%	estimation process
2013	920,869	0.1%	estimation process
2014	921,755	0.1%	estimation process
2015	920,644	-0.12%	estimation process
2016	918,678	-0.21%	estimation process
2017	919,034	0.04%	estimation process
2018	919,717	0.07%	estimation process
2019	918,702	-0.11%	estimation process
2020	917,241	-0.16%	estimation process

Map of countries with a smaller population than Erie County

Comitatul Erie, Comte d'Erie, Comte dErie, Comté d'Erie, Comté dÉrié, Condado de Erie, Condado han Erie, Contea di Erie, Ehri, Eri, Eri srjan, Erie, Erie Comitatus, Erie Kun, Erie Kūn, Erie konderria, Erie maakond, Erie megye, Hrabstwo Erie, Okrug Iri, Quan Erie, Quận Erie, eri jun, eri ka'unti, mqatʿt ayry, shhrstan ayry nywywrk, yi li xian, Ери, Ері, Округ Ири, Эри, Էրի շրջան, ایری کاؤنٹی, ایری کاؤنٹی، نیویارک, شهرستان ایری، نیویورک, مقاطعة إيري, এরি কাউন্টি, エリー郡, 伊利縣

People born in Erie County (8)

People born in Erie County, including journalist and radio broadcaster Dorothy Thompson, scientist Elon Howard Eaton, actor and model Ben Elliott, .

More notable people

Lyman Draper (American historian) he was born in 04/09/1815
Samuel L. Bestow (American politician) he was born in 08/03/1823
Samuel S. French (Medal of Honor recipient) he was born in 23/04/1841
James P. Hayes (American politician) he was born in 23/07/1964
LeGrande A. Diller (US Army officer (1901–1987)) he was born in 16/02/1901

Other places with the same name (2)

Erie County, Pennsylvania county in Pennsylvania, United States with a population of 268,426 people.
Erie County, Ohio county in Ohio, United States with a population of 73,719 people.

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.
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
Staten Island	474,558	The fifth most populous borough of New York City.