Jefferson County, Oregon
![]() Jefferson County Courthouse |
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administration | |
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US state : | Oregon |
Administrative headquarters : | Madras |
Foundation : | 1914 |
Demographics | |
Residents : | 21,720 (2010) |
Population density : | 4.7 inhabitants / km 2 |
geography | |
Total area : | 4639 km² |
Water surface : | 27 km² |
map | |
Website : www.co.jefferson.or.us |
Jefferson County is a county in the US state of Oregon in the United States of America with 21,720 inhabitants (as of 2010). The county seat is Madras . The county is named after Mount Jefferson .
geography
The county covers an area of 4,639 square kilometers, of which 27 square kilometers (0.58 percent) are water.
history
Three buildings in the county are listed on the National Register of Historic Places (NRHP) (as of July 12, 2018).
Demographic data
growth of population | |||
---|---|---|---|
Census | Residents | ± in% | |
1920 | 3211 | - | |
1930 | 2291 | -28.7% | |
1940 | 2042 | -10.9% | |
1950 | 5536 | 171.1% | |
1960 | 7130 | 28.8% | |
1970 | 8548 | 19.9% | |
1980 | 11,599 | 35.7% | |
1990 | 13,676 | 17.9% | |
2000 | 19.009 | 39% | |
2010 | 21,720 | 14.3% | |
1900-1990
2000 |
The county had 19,009 people as of the 2000 census . There were 6,727 households and 5,166 families. The population density was 4 people per square kilometer. The racial the population was composed of 68.98% white, 0.26% African American, 15.68% Native American, 0.30% Asian, 0.22% residents from the Pacific island area and 11.32% from others ethnic groups; 3.23% were from two or more races. Hispanic or Latino of any race was 17.74% of the population.
Of the 6,727 households, 35.60% had children and young people under the age of 18 living with them. 60.50% were married couples living together, 10.50% were single mothers. 23.20% were not families. 18.60% are single households and 6.90% have someone living there who is 65 years of age or over. The average household size was 2.80 and the average family size was 3.16.
For the county as a whole, the population was 29.80% below the age of 18, 7.70% between 18 and 24, 26.90% between 25 and 44, and 23.20% between 45 and 64 12.40% were 65 years of age or over. The median age was 35 years. For every 100 females there were 101.90 males, and for every 100 females aged 18 and over there were 100.80 males.
The median income for a household in the county is $ 35,853 , and the median income for a family is $ 39,151. Males had a median income of $ 31,126 versus $ 22,086 for females. The per capita income was $ 15,675. 14.60% of the population and 10.40% of families are below the poverty line. 22.20% of these were under 18 years of age and 5.90% were 65 years of age or older.
Individual evidence
- ^ Jefferson County in the Geographic Names Information System of the United States Geological Survey . Retrieved February 22, 2011
- ↑ Search mask database in the National Register Information System. National Park Service , accessed July 12, 2018.
- ↑ Extract from Census.gov . Retrieved February 28, 2011
- ↑ Excerpt from factfinder.census.gov.Retrieved February 28, 2011
- ^ Extract from the National Register of Historic Places . Retrieved March 13, 2011
Web links
- Jefferson County Official Website
Coordinates: 44 ° 38 ′ N , 121 ° 10 ′ W