kids encyclopedia robot

Seneca County, New York facts for kids

Kids Encyclopedia Facts
Quick facts for kids
Seneca County
Historic Seneca County Courthouse Complex at Ovid
Historic Seneca County Courthouse Complex at Ovid
Flag of Seneca County
Flag
Official seal of Seneca County
Seal
Map of New York highlighting Seneca County
Location within the U.S. state of New York
Map of the United States highlighting New York
New York's location within the U.S.
Country  United States
State  New York
Founded 1804
Named for Seneca people
Seat Waterloo and Ovid
Largest CDP Seneca Falls
Area
 • Total 390 sq mi (1,000 km2)
 • Land 324 sq mi (840 km2)
 • Water 67 sq mi (170 km2)  17%
Population
 (2020)
 • Total 33,814
 • Density 104.5/sq mi (40.3/km2)
Time zone UTC−5 (Eastern)
 • Summer (DST) UTC−4 (EDT)
Congressional district 24th

Seneca County is a county in the state of New York, USA. In 2020, about 33,814 people lived here. The main county seat is Waterloo. However, Ovid is also a county seat. This means Seneca County has two county seats.

The county got its name from the Seneca Nation. They were a group of Haudenosaunee (Iroquois) people who lived in this area. Seneca County is part of the beautiful Finger Lakes region of New York.

History of Seneca County

The land that is now Seneca County was once home to the Seneca and Cayuga Native American groups. When counties were first created in New York in 1683, this area was part of a huge county called Albany County. This county was very large, stretching all the way to the Pacific Ocean in theory!

Changes to County Borders

Over time, Albany County became smaller. In 1772, it was divided into three parts. One new part was called Tryon County. This county covered a large western area of New York. It was named after William Tryon, who was the colonial governor.

After the American Revolutionary War, in 1784, Tryon County's name was changed. It became Montgomery County. This was to honor General Richard Montgomery, a hero of the war.

Montgomery County was also very large and was later divided many times.

  • In 1789, Ontario County was created from Montgomery County.
  • In 1791, Herkimer County was formed from Montgomery County.
  • In 1794, Onondaga County was formed from Herkimer County.
  • In 1799, Cayuga County was formed from Onondaga County. This county was much bigger than the Cayuga County we know today.

Finally, in 1804, Seneca County was created by splitting off from Cayuga County.

The Two County Seats

Seneca County's first county seat was in Ovid. A courthouse was built there in 1806. Later, in 1817, some southern parts of Seneca County became part of Tompkins County. Because of this, Waterloo became more central, so the county seat moved there in 1819.

But in 1823, more land was taken from Seneca County to form part of Wayne County. This made Waterloo less central. So, a compromise was made: both Ovid and Waterloo would be county seats. This is why Seneca County is known as a "two-shire" county. Even today, the county board holds meetings in Ovid at least once a year to keep this tradition alive.

Important Historical Events

In 1779, during the Revolutionary War, General Sullivan led a campaign against the Iroquois who supported the British. His army destroyed many Cayuga and Seneca villages along Seneca Lake.

On April 6, 1830, an important religious event happened in Seneca County. The Church of Jesus Christ of Latter Day Saints was founded at the home of a farmer named Peter Whitmer. Today, there is a historical visitor's center at that spot.

Geography of Seneca County

Seneca County covers about 390 square miles. About 324 square miles are land, and 67 square miles (17%) are water.

The county is located in the western part of New York. It is part of the beautiful Finger Lakes Region. Cayuga Lake forms its eastern border, and Seneca Lake is on its western side.

A part of the Finger Lakes National Forest is located in the southern part of the county. Both the New York State Thruway and the Erie Canal pass through the northern part of Seneca County.

The former Seneca Army Depot is a large area of land between Cayuga and Seneca Lakes. Sampson State Park is located next to this former army base.

Neighboring Counties

Seneca County shares borders with these other counties:

Main Roads

These are some of the major highways that go through Seneca County:

  • I-90.svg Interstate 90 (New York State Thruway)
  • US 20.svg U.S. Route 20
  • NY-5.svg New York State Route 5
  • NY-89.svg New York State Route 89
  • NY-96.svg New York State Route 96
  • NY-96A.svg New York State Route 96A
  • NY-414.svg New York State Route 414
  • NY-336.svg New York State Route 336

Protected Natural Areas

People of Seneca County (Demographics)

Historical population
Census Pop.
1810 16,609
1820 23,619 42.2%
1830 21,041 −10.9%
1840 24,874 18.2%
1850 25,441 2.3%
1860 28,138 10.6%
1870 27,823 −1.1%
1880 29,278 5.2%
1890 28,227 −3.6%
1900 28,114 −0.4%
1910 26,972 −4.1%
1920 24,735 −8.3%
1930 24,983 1.0%
1940 25,732 3.0%
1950 29,253 13.7%
1960 31,984 9.3%
1970 35,083 9.7%
1980 33,733 −3.8%
1990 33,683 −0.1%
2000 33,342 −1.0%
2010 35,251 5.7%
2020 33,814 −4.1%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2020

In 2010, there were 35,251 people living in Seneca County. The county had 13,393 households. The average number of people in each household was about 2.51.

Most people in Seneca County are White (93.7%). There are also people who are African American (5.1%), Native American (0.8%), and Asian (0.8%). About 2.7% of the population was Hispanic or Latino.

Most people in the county (95.3%) speak English at home. About 1.6% speak Spanish.

2020 Census Information

Seneca County Racial Composition
Race Num. Perc.
White (NH) 29,273 86.6%
Black or African American (NH) 1,263 3.74%
Native American (NH) 151 0.45%
Asian (NH) 268 0.8%
Pacific Islander (NH) 3 0.01%
Other/Mixed (NH) 1,489 4.4%
Hispanic or Latino 1,367 4.04%

Communities in Seneca County

Seneca County has several towns, villages, and smaller communities called hamlets.

Largest Towns and Villages

# Location Population Type Region
1 Seneca Falls 6,681 CDP North
2 Waterloo 5,171 Village North
3 Interlaken 602 Village Cayuga
3 Ovid 602 Village Seneca
5 Romulus 409 CDP Cayuga
6 Lodi 291 Village Seneca

† - County Seat

Towns

Hamlets

Hamlets are smaller, unincorporated communities.

See also

Kids robot.svg In Spanish: Condado de Seneca (Nueva York) para niños

kids search engine
Seneca County, New York Facts for Kids. Kiddle Encyclopedia.