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Yolo County is located in the northern part of the U.S. state of Californiamarker, bordered by the counties of Sacramentomarker, Solanomarker, Napamarker, Lakemarker, Colusamarker, and Suttermarker. Woodlandmarker is the county seat.

As of the 2000 census, Yolo County had a population of 168,660. Excluding the conurbation of the University of California, Davismarker and the surrounding City of Davis, and the neighboring City of Sacramentomarker, Yolo County remains a relatively rural agricultural region. This is evidenced by the multi-billion dollar California tomato industry, centering around Yolo County, dominating 90% of the canning and processed tomato market in the United Statesmarker.

Yolo County is part of the SacramentomarkerArden-ArcademarkerRosevillemarker Metropolitan Statistical Area.


Yolo County was one of the original counties of California, created in 1850 at the time of statehood.

In the original act of 1850 the name was spelled "Yola." Yolo is a Native American name variously believed to be a corruption of a tribal name Yo-loy meaning "a place abounding in rushes" or of the name of the chief, Yodo, or of the village of Yodoi.


The county is governed by a board of five district supervisors as well as the governments of its four incorporated cities: Davismarker, West Sacramentomarker, Wintersmarker, and Woodlandmarker.


Yolo County Courthouse in Woodland
According to the U.S. Census Bureau, the county has a total area of 1,023 square miles (2,649 km²), of which, 1,013 square miles (2,624 km²) of it is land and 10 square miles (25 km²) of it (0.94%) is water.

Cities and towns

Incorporated cities

Aerial view of Watts Woodland Airport and surrounding area

Unincorporated communities

Other unincorporated areas or communities not incorporated into the above cities, include:

UC Davis

Adjacent counties

Transportation infrastructure

Major highways

County Roads

Transportation in Yolo County is based on a system of numbered County Roads. The numbering system works in the following way:

  1. North/South roads have numbers from 41 to 117 and increase from west to east
  2. East/West roads have numbers from 1 to 38A, and then from 151 to 161 and increase from north to south.

Each integer road number is one mile apart, with letters designating occasional roads less than one mile apart. County roads entering urban areas generally are named once they cross the city boundary. Some examples include County Road 101 in Woodlandmarker being renamed Pioneer Ave and County Road 102 in Davismarker being named Pole Line Road.

Public transportation



As of the census of 2000, there were 168,660 people, 59,375 households, and 37,465 families residing in the county. The population density was 166 people per square mile (64/km²). There were 61,587 housing units at an average density of 61 per square mile (23/km²). The racial makeup of the county was 67.67% White, 2.03% Black or African American, 1.16% Native American, 9.85% Asian, 0.30% Pacific Islander, 13.76% from other races, and 5.23% from two or more races. 25.91% of the population were Hispanic or Latino of any race. 10.0% were of German, 6.6% English and 6.4% Irish ancestry according to Census 2000. 68.5% spoke English, 19.5% Spanish, 2.1% Chinese or Mandarin and 1.8% Russian as their first language.

There were 59,375 households out of which 33.6% had children under the age of 18 living with them, 47.6% were married couples living together, 11.1% had a female householder with no husband present, and 36.9% were non-families. 23.3% of all households were made up of individuals and 7.3% had someone living alone who was 65 years of age or older. The average household size was 2.71 and the average family size was 3.25.

In the county the population was spread out with 25.2% under the age of 18, 18.3% from 18 to 24, 28.2% from 25 to 44, 18.9% from 45 to 64, and 9.4% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 95.6 males. For every 100 females age 18 and over, there were 92.2 males.

The median income for a household in the county was $40,769, and the median income for a family was $51,623. Males had a median income of $38,022 versus $30,687 for females. The per capita income for the county was $19,365. About 9.5% of families and 18.4% of the population were below the poverty line, including 16.0% of those under age 18 and 7.4% of those age 65 or over.


Colleges and universities

Public schools

The county's public schools are managed by the Yolo County Office of Education.


Yolo County Votes

by Party in Presidential Elections
Year DEM GOP Others
2008 67.1% 46,499 31.0% 21,486 1.9% 1,333
2004 59.3% 42,885 38.8% 28,005 1.9% 1,379
2000 54.9% 33,747 37.5% 23,057 7.5% 4,632
1996 56.9% 33,033 32.4% 18,807 10.7% 6,239
1992 53.3% 33,297 28.2% 17,574 18.5% 11,565
1988 57.0% 30,429 41.9% 22,358 1.1% 585
1984 50.9% 25,879 47.8% 24,329 1.3% 645
1980 43.3% 21,527 39.5% 19,603 17.2% 8,560
1976 54.3% 23,533 42.4% 18,376 3.3% 1,408
1972 55.4% 23,694 42.0% 17,969 2.52% 1,075
1968 54.7% 15,833 38.4% 11,123 6.92% 2,004
1964 69.5% 18,266 30.4% 7,976 0.1% 32
1960 54.9% 12,395 44.7% 10,104 0.4% 90

Yolo is a strongly Democratic county in Presidential and congressional elections. The last Republican to win a majority in the county was Dwight Eisenhower in 1952.

Yolo is part of California's 1st and 2nd congressional districts, which are held by Democrat Mike Thompson and Republican Wally Herger respectively. In the state legislature, Yolo is in the 2nd and 8th Assembly districts, which are held by Republican Jim Nielsen and Democrat Mariko Yamada, respectively, and the 5th Senate district, which is held by Democrat Lois Wolk.

In November 2008, Yolo was one of just three counties in California's interior in which voters rejected Proposition 8 to ban gay marriage. Yolo voters rejected Proposition 8 by 58.4 percent to 41.6 percent. The other interior counties in which Proposition 8 failed to receive a majority of votes were Alpine Countymarker and Mono Countymarker.

See also


  1. County-by-County Map, California Propositions: The Los Angeles Times

External links

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