Map - Erie County, New York (Erie County)

Erie County is a county along the shore of Lake Erie in western New York State. As of the 2020 census, the population was 954,236. The county seat is Buffalo, which makes up about 28% of the county's population. Both the county and Lake Erie were named for the regional Iroquoian language-speaking Erie tribe of Native Americans, who lived in the area before 1654. They were later pushed out by the more powerful Iroquoian nations tribes.

Erie County, along with its northern neighbor Niagara County, makes up the Buffalo-Niagara Falls metropolitan area, the second largest in the State of New York behind New York City. The county's southern part is known as the Southtowns. The county has seen one of the highest growth rates of any county in the State of New York from the 2010 to 2020 census.

When counties were established by the English colonial government in the Province of New York in 1683, present-day Erie County was part of Indian territory occupied by Iroquoian-speaking peoples. It was administered as part of New York colony. Significant European-American settlement did not begin until after the United States had gained independence with the end of the American Revolutionary War in 1783. They forced the Iroquois to cede most of their lands, as many had been allies of the British. ["They" ambiguous; reference required]

About 1800, the Holland Land Company, formed by Americans and Dutch associates, extinguished Indian claims by purchasing the land from New York, acquired the title to the territory of what are today the eight westernmost counties of New York, surveyed their holdings, established towns and began selling lots to individuals. The state was eager to attract settlers and have homesteads and businesses developed. At this time, all of western New York was included in Ontario County.

As the population increased, the state legislature created Genesee County in 1802 out of part of Ontario County. In 1808, Niagara County was created out of Genesee County. In 1821, Erie County was created out of Niagara County, encompassing all the land between Tonawanda Creek and Cattaraugus Creek. The first towns formed in present-day Erie County were the Town of Clarence and the Town of Willink. Clarence and Willink comprised the northern and southern portions of Erie county, respectively. Clarence is still a distinct town, but Willink was quickly subdivided into other towns. When Erie County was established in 1821, it consisted of the towns of Amherst, Aurora, Boston, Clarence, Collins, Concord, Eden, Evans, Hamburg, Holland, Sardinia and Wales.

The county has a number of houses and other properties listed on the National Register of Historic Places listings in Erie County, New York.

In 1861, the hamlet of Town Line in the Town of Lancaster voted 85–40 to secede from the Union. Town Line never sought admission into the Confederate States of America and there is no evidence that men from the community ever fought for the Confederacy. Some reporting from that time indicates the vote was a joke. On January 24, 1946, as part of a nationally reported event, Town Line voted to officially return to the Union after 85 years of Union secession.