Jefferson County, Oregon
Jefferson County, Oregon
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2315834

Jefferson County, Oregon

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2315834

Jefferson County, Oregon

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Jefferson County, Oregon

Jefferson County is one of the 36 counties in the U.S. state of Oregon. At the 2020 census, the population was 24,502. The county seat is Madras. The county is named after Mount Jefferson, the second tallest mountain in Oregon.

Jefferson County was created on December 12, 1914, from a portion of Crook County. The county owes much of its agricultural prosperity to the railroad, which links Madras with the Columbia River, and was completed in 1911, and to the development of irrigation projects in the late 1930s. The railroad was completed despite constant feuds and battles between two lines working on opposite sides of the Deschutes River.

Madras was incorporated in 1911, and has been the permanent county seat since a general election in 1916. The first (temporary) county seat was Culver, which was selected by a three-man commission appointed by the governor. Due to repeated tie votes over several days (with one vote each cast for Culver, Metolius and Madras). The deadlock was eventually broken by allowing the Metolius Commissioner to post the tie-breaker, by voting for Culver.[citation needed]

Rapid development in adjacent Deschutes County during the 1990s had farmers in Jefferson County concerned that they might be priced out of their own farmlands, which could be replaced by destination resorts, golf courses and other amenities for recent arrivals.[citation needed]

According to the United States Census Bureau, the county has a total area of 1,791 square miles (4,640 km2), of which 1,781 square miles (4,610 km2) is land and 10 square miles (26 km2) (0.6%) is water.

As of the 2020 census, the county had a population of 24,502. Of the residents, 22.5% were under the age of 18 and 20.6% were 65 years of age or older; the median age was 41.5 years. For every 100 females there were 107.0 males, and for every 100 females age 18 and over there were 107.3 males. 33.0% of residents lived in urban areas and 67.0% lived in rural areas.

The racial makeup of the county was 65.3% White, 0.6% Black or African American, 13.6% American Indian and Alaska Native, 0.6% Asian, 0.1% Native Hawaiian and Pacific Islander, 10.0% from some other race, and 9.8% from two or more races. Hispanic or Latino residents of any race comprised 20.4% of the population.

There were 8,680 households in the county, of which 31.4% had children under the age of 18 living with them and 23.0% had a female householder with no spouse or partner present. About 22.0% of all households were made up of individuals and 11.2% had someone living alone who was 65 years of age or older.

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