Jefferson County, New York

Jefferson County is a located in the  of. As of the, the population was 111,738. It is named after, third. Its is.

When Jefferson County was created in, it was named after the currently serving President,.

History
When counties were established in New York State in, the present Jefferson County was part of. This was an enormous county, including the northern part of New York State as well as all of the present State of and, in theory, extending westward to the. This county was reduced in size on, by the creation of , and further on ,  by the creation of , both containing territory now in Vermont.

On, , what was left of Albany County was split into three parts, one remaining under the name Albany County. One of the other pieces,, contained the western portion (and thus, since no western boundary was specified, theoretically still extended west to the Pacific). The eastern boundary of Tryon County was approximately five miles west of the present city of, and the county included the western part of the and the area west of the West Branch of the. The area then designated as Tryon County now includes 37 counties of New York State. The county was named for, colonial governor of New York.

In the years subsequent to, most of the Loyalists in Tryon County fled to. In, following the peace treaty that ended the , the name of Tryon County was changed to to honor the general, , who had captured several places in Canada and died attempting to capture the city of , replacing the name of the hated British governor.

In, the size of Montgomery County was reduced by the splitting off of from Montgomery. The actual area split off from Montgomery County was much larger than the present county, also including the present, , , , , , , , , , , , and part of and.

Jefferson County is part of of 1791.

In, Herkimer County was one of three counties split off from Montgomery (the other two being , and ). This was much larger than the present county, however, and was reduced by a number of subsequent splits. The first one of these, in, produced. This county was larger than the current Onondaga County, including the present, , and part of.

(as well as a part of ), was split off from Herkimer County in.

Jefferson County was split off from Oneida County in.

Geography
Jefferson County is on the western side of northern New York State, adjacent to the area where the exits. It is almost due north of, and northwest of. The county is at the international border with.

The, which empties into Lake Ontario, is an important stream in the county. Part of the is in the southern part of the county.

The county also includes nearby islands in the St. Lawrence River, including such large islands as Carleton Island,, and.

According to the, the county has a total area of 4,810 (1,857 ). 3,295 km² (1,272 sq mi) of it is land and 1,515 km² (585 sq mi) of it (31.49%) is water.


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Demographics
As of the of 2000, there were 111,738 people, 40,068 households, and 28,127 families residing in the county. The was 34/km² (88/sq mi). There were 54,070 housing units at an average density of 16/km² (42/sq mi). The racial makeup of the county was 88.71%, 5.83% or , 0.53% , 0.92% , 0.14% , 2.05% from , and 1.82% from two or more races. 4.19% of the population were or  of any race.

There were 40,068 households out of which 37.20% had children under the age of 18 living with them, 55.60% were living together, 10.40% had a female householder with no husband present, and 29.80% were non-families. 24.40% of all households were made up of individuals and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.58 and the average family size was 3.07.

In the county the population was spread out with 26.50% under the age of 18, 11.80% from 18 to 24, 31.30% from 25 to 44, 19.10% from 45 to 64, and 11.30% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 107.30 males. For every 100 females age 18 and over, there were 108.50 males.

The median income for a household in the county was $34,006, and the median income for a family was $39,296. Males had a median income of $28,727 versus $21,787 for females. The for the county was $16,202. About 10.00% of families and 13.30% of the population were below the, including 16.80% of those under age 18 and 9.20% of those age 65 or over.

Cities, towns, villages, and other communities

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Additional county information
Jefferson County contains part of the and borders the.

in Watertown provides higher education within the county.

The  is based at Fort Drum.