The Seneca were the largest of the original Five Nations of the Iroquois Confederacy.
As they were the westernmost of what later became the Six Nations or Iroquois League (Haudenosaunee), they were known as the "Keepers of the Western Door."
Today, it is estimated that there are about 10,000 Seneca in the United States, where there are three federally recognized Seneca tribes: the Seneca Nation, the Towanda Seneca Nation, and the Seneca-Cayuga Nation. Additionally, there are about a thousand Seneca on the Six Nations of the Grand River First Nation reserve in Ontario, Canada.
Situated in western New York, the Seneca Nation has three reservations, only two of which are occupied. The Cattaraugus Reservation is just under 35 square miles, stretching from Lake Erie inward along Cattaraugus Creek. Although it is one piece of land, it is divided among Cattaraugus County, Chautauqua County, and Erie County for census purposes. More than forty percent of the people living on the Alleghany Reservation are European-Americans who occupy properties leased from the Seneca Nation. While most of its Iroquois residents are Seneca, there are also Cayuga people there. It borders both banks of the Allegheny River and is partially within several of the towns in southern Cattaraugus County. One square mile in size, the Oil Springs Reservation had only one resident in 2010. It is bordered by the towns of Cuba and Ischua, straddling Allegany and Cattaraugus counties.
The Tonawanda Band of Seneca Indians, also known as the Tonawanda Seneca Nations, is also located in western New York. In 1848, the Seneca Nation approved a republican constitution, electing a council and executive officials to govern their lands. A group of members opted out of participating in the republic, forming a separate band, which became the Tonawanda Seneca Nations nine years later. The Tonawanda reestablished a continuation of the traditional Seneca government. The Tonawanda govern a 7,500-acre reservation near Akron.
The Seneca-Cayuga Nation is based in Oklahoma, where they have a tribal jurisdictional area in the northeast corner of the state. Consisting of both Seneca and Cayuga people, its members are descended from Iroquoian people who had relocated to Ohio from New York in the mid-18th century. While there are more than five thousand enrolled members of the Nation, just over a thousand of them live in Oklahoma. The Seneca-Cayuga Nation has an elected form of government.
The Six Nations of the Grand River is the largest First Nations reserve in Canada. Situated in Ontario, the reserve covers 46,000 acres and is home to descendants of each of the Six Nations of the Iroquois Confederacy, the Mohawk, Cayuga, Onondaga, Oneida, Seneca, and Tuscarora, as well as some Lenape. Primarily, these were the Iroquois who allied with the British during the American Revolutionary War.
Prior to the 19th century, the Seneca lived in longhouses in settled villages. Longhouses were so named because they could be as long as a hundred feet in length and housed related families, along matriarchal lines. Today, longhouses are still used by the Seneca for ceremonial purposes, although not as living spaces.
The Seneca recognize eight clans: Bear, Wolf, Turtle, Beaver, Deer, Hawk, Snipe, and Heron. Seneca children are born into their mother's clan, and their social status is derived from the family of the mother. Traditionally, the mother's eldest brother was a larger figure in the life of a Seneca child than the biological father, who does not belong to the same clan. Marriages were required to be between people of different clans.
Like several American Indian groups, the Seneca grew three staple crops together. Known as the "three sisters," these were corn, beans, and squash. Berries, herbs, and roots were gathered as food and for medicinal purposes, and Seneca men would hunt deer, elk, and smaller game. They also raised domesticated fowls, such as turkeys.
Although most Seneca are Christian today, some still follow the Longhouse Religion, also known as the Code of Handsome Lake, or Gaihwi:io/Kaliwihyo. Founded by a Seneca prophet, Handsome Lake (Sganyodaiyoˀ), the religion combines elements of traditional Seneca religious beliefs with elements of Christianity, primarily taken from the Quakers. The religion uses longhouses for ceremonial purposes, which is why it is often referred to as the Longhouse Religion. Interestingly, Joseph Smith, the founder of the Church of Jesus Christ of Latter-Day Saints (Mormonism), is believed to have been influenced by the teachings of Handsome Lake.
The focal point of this section of our guide is on the Seneca peoples. American Indian or First Nations tribes, or bands identifying as Seneca are appropriate for this category, along with Seneca reservations, reserves, or other holdings, businesses, industries, medical facilities, schools, museums, and other entities.
 
 
Recommended Resources
Ganondagan State Historic Site is an American Indian site in Ontario County, New York, the location of the largest Seneca village during the 17th century. It consists of the 245-acre Boughton Hill portion, an area of longhouses and burial sites, and a 33-acre fortified granary that is on the National Register of Historic Places. Ganondagan programming is supported in part by the New York State Council on the Arts, and other sponsors, as well as memberships. Volunteer opportunities are stated.
https://ganondagan.org/
Ganondagon State Historic Site
Located in Victor, New York, the Ganondagon State Historic Site is a National Historic Landmark, the only New York State Historic Site dedicated to a Native American theme, and the only Seneca town developed and interpreted in the United States. Covering 569 acres, it is the original site of a 17th-century Seneca town that was then known as Gandagora. The site includes a fully-furnished Seneca bark longhouse, an arts and culture center, an exhibit space, a theater, and a gift shop.
https://parks.ny.gov/historic-sites/26/details.aspx
Owned and operated by the Seneca Nation of Indians, the campground is near the Onohsagwe:de’ Cultural Center and the Seneca Allegany Casino. Offering chalets, cabins, trailer hookups, and tent sites, the campground includes a boat launch, dock rentals, an in-ground pool, hot tub, and kiddie pool, as well as horseshoe pits, fishing, volleyball, a playground, children's activities, and wireless Internet. Photographs, pricing, and online campsite reservations are available.
https://camphighbanks.com/
Jefferson's Indian Address to Brother Handsome Lake
Handsome Lake (Ganyodaiyo') was a Seneca religious leader of the Iroquois people, and half-brother to Cornplanter (Gayentwahgeh), a Seneca war chief. His message was eventually published as the Code of Handsome Lake, which is still practiced today. Yale Law School published an address from Thomas Jefferson to Handsome Lake on November 3, 1802, on the subjects of alcohol and in reference to concerns about the sale of lands to the State of New York, of which there was controversy.
https://avalon.law.yale.edu/19th_century/jeffind2.asp
Headquartered on Thomas Indian School Drive in Irving, New York, within the Seneca Nation of Indians, Seneca Energy's mission is to ensure the security, prosperity, and independence of the Nation through its sustainable energy platform, lowering energy costs for the Nation and its residents. Its wind turbine and solar array projects, natural gas initiative, water and wastewater facilities, LED projects, and broadband fiber Internet projects are highlighted and described.
https://senecaenergy.com/
Wholly owned by the Seneca Nation, Seneca Holdings was formed in 2009 to pursue non-gaming-related investment and development opportunities in order to diversify and strengthen the Seneca Nation's economy. Seneca Holdings has a portfolio of businesses serving the federal and commercial marketplace, including the Seneca Nation Group, Seneca Environmental, and the Hopewell Center. General information about the Seneca Nation, Seneca Holding's businesses, and career opportunities.
https://senecaholdings.com/
Seneca Iroquois National Museum
The Seneca-Iroquois National Museum houses an impressive collection of historical and traditionally designed decorative and everyday use items, archaeological artifacts, historical documents and other publications, historical and family photographs, and various multimedia productions relating to the Onöndowa’ga:’ and Hodinöhsö:ni’. Its exhibits and collections are highlighted, and its location, admissions hours and costs, a calendar of events, and contacts are posted.
https://www.senecamuseum.org/
Today, the Seneca Nation is a democracy whose constitution was established in 1848 and provides for a multi-branch system of government that is made up of elected executive and legislative branches, and an elected judicial branch, with its leadership rotating back and forth between residents of the Cattaraugus and Alleghany territories every two years. Administrative contacts, community services, public safety, health services, culture, education, and job opportunities are featured.
https://sni.org/
Seneca Nation of Indians Economic Development Company
The SNIEDC supports community development by providing financial and educational solutions for customer and business lending to eligible enrolled tribal members in Seneca Territory and the surrounding areas. The non-profit organization was chartered in 1993 by the Seneca Nation of Indians Tribal Council. Information about its loan program and other business resources, eligibility, its board of directors, news, and contacts are posted, along with a list of clients.
https://www.sniedc.org/
Seneca Nation of Indians Federal Credit Union
SNIFCU is a non-profit, member-owned cooperative financial institution. Its mission is to provide financial services to its members by designing products and services to meet their needs, and to educate its members in financial planning, saving money, and providing credit when needed. With locations in Irving and Salamanca, New York, directions, a map, and an overview of its products and services, checking and savings programs, loan policies, rates, and disclosures are set forth.
https://www.snifcu.org/
Established in the Allegany Territory of the Seneca Nation in 1986, the Nation opened a second store in Irving in 1988, a third one in Cuba in 1991, a fourth one in Niagara Falls in 2016, and a fifth one in Buffalo Creek in 2021. The Seneca Nation of Indian's chain of convenience stores was put under the operations of the newly created Seneca Nation Enterprises in 1994 and renamed Seneca One Stop. Its locations, contacts, services, and products are highlighted, and job opportunities are posted.
https://senecaonestop.com/
Seneca Gaming Corporation (SGC) is wholly owned and chartered by the Seneca Nation of Indians, which operates all of the Nation's Class III gaming operations in Western New York. Through its subsidiaries, Seneca Niagara Falls Gaming Corporation, Seneca Territory Gaming Corporation, and Seneca Erie Gaming Corporation, SGC operates Seneca resorts and casinos in Niagara Falls, Salamanca, and Buffalo. Its executive team, board, audit committee, and compensation committee are identified.
https://senecacasinos.com/
One of three recognized tribes of Seneca people in the United States, the Seneca-Cayuga Nation is in northeastern Oklahoma. The tribe issues its own tribal vehicle tags and operates a variety of programs and services for tribal members, which are highlighted on its website, along with a calendar of events. Its governmental structure, constitution, bylaws, and enrollment policies are noted, along with tribal businesses and enterprises, a blog, and career opportunities.
https://sctribe.com/
With locations in the Cattaraugus and Allegany territories of the Seneca Nation of Indians in New York, the newsletter is operated by the Seneca Nation. Past issues may be viewed through the website, which includes bulletins and notices from the Nation's president, treasurer, clerk, and councilors, along with information from and about the Nation's elders. Community news, the Nation's departments, sports stories, gaming, events, and contacts are provided.
https://sninews.org/