Yolo County, California
|County of Yolo|
|Coordinates: 38°33′14″N121°44′17″W / 38.55389°N 121.73806°W Coordinates: 38°33′14″N121°44′17″W / 38.55389°N 121.73806°W|
|Incorporated||February 18, 1850 |
|Largest city|| Davis (population)|
West Sacramento (area)
|• Body||Board of Supervisors|
|• Chair||Oscar Villegas|
|• Vice Chair||Angel Barajas|
|• Board of Supervisors |
|• County Administrator||Gerardo Pinedo|
|• Total||1,024 sq mi (2,650 km2)|
|• Land||1,015 sq mi (2,630 km2)|
|• Water||8.9 sq mi (23 km2)|
|Highest elevation||3,123 ft (952 m)|
|• Density||210/sq mi (82/km2)|
|Time zone||UTC-8 (Pacific Time Zone)|
|• Summer (DST)||UTC-7 (Pacific Daylight Time)|
|Area codes||530, 916, 279|
|GNIS feature ID||277321|
Yolo County ( /ˈjoʊloʊ/ ( listen ); Wintun: Yo-loy), officially the County of Yolo, is a county located in the northern portion of the U.S. state of California. As of the 2020 census, the population was 216,403.   Its county seat is Woodland. 
Yolo County is included in the Greater Sacramento metropolitan area and is located in the Sacramento Valley.
The majority of Yolo County remains a relatively rural agricultural region.
In the original act of 1850 the name was spelled "Yola." Yolo is a Patwin Native American name variously believed to be a corruption of a tribal name Yo-loy meaning "a place abounding in rushes", the village of Yodoi, believed to be in the vicinity of Knights Landing, California, or the name of the chief of said village, Yodo.  
Yolo County was one of the original counties of California, created in 1850 at the time of statehood.
The county is governed by a board of five district supervisors as well as the governments of its four incorporated cities: Davis, West Sacramento, Winters, and Woodland.
According to the U.S. Census Bureau, the county has a total area of 1,024 square miles (2,650 km2), of which 1,015 square miles (2,630 km2) is land and 8.9 square miles (23 km2) (0.9%) is water.  
Addressing in Yolo County is based on a system of numbered county roads. The numbering system works in the following way:
Each integer road number is generally one mile (1.6 km) apart, with letters occasionally designating roads less than one mile (1.6 km) apart. County roads entering urban areas generally become named roads once they cross a city boundary. Some examples include County Road 101 in Woodland being renamed Pioneer Ave. and County Road 102 (also known as County Route E8) in Davis being named Pole Line Road.
The Port of Sacramento, now known as the Port of West Sacramento, is an inland port in West Sacramento, California, in the Sacramento metropolitan area. It is 79 nautical miles (146 km) northeast of San Francisco, and is centered in the California Central Valley, one of the richest agricultural regions in the world.
The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.
|Population and crime rates|
|Violent crime ||556||2.80|
|Forcible rape ||68||0.34|
|Aggravated assault ||310||1.56|
|Property crime ||2,979||14.98|
|Larceny-theft  [note 1]||3,844||19.33|
|Motor vehicle theft ||559||2.81|
|Cities by population and crime rates|
|City||Population ||Violent crimes ||Violent crime rate|
per 1,000 persons
|Property crimes ||Property crime rate|
per 1,000 persons
Yolo is a strongly Democratic county in presidential and congressional elections. The last Republican presidential candidate to win a majority in the county was Dwight Eisenhower in 1952, which is the longest Republican drought for any California county.[ citation needed ] In fact, since 1928, Eisenhower's win in 1952 was the only time the county was carried by the Republican presidential nominee.
Yolo County has been somewhat more likely to elect Republican governors since then (Ronald Reagan carried the county in 1966, George Deukmejian in 1986, and Arnold Schwarzenegger in 2003 and 2006).
In the United States House of Representatives, Yolo County is split between California's 4th and 7th congressional districts,  represented by Mike Thompson ( D – St. Helena )  and Doris Matsui ( D – Sacramento ),  respectively.
In the California State Senate, the county is split between the 3rd and 6th Senate districts,  represented by Bill Dodd and Roger Niello, respectively.
In the California State Assembly, the county is split between the 4th and 7th Assembly districts,  represented by Cecilia Aguiar-Curry and Josh Hoover, respectively.
In June 1978, Yolo was one of only three counties in the entire state to reject Proposition 13 (the others being San Francisco and Kern).[ citation needed ]
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 a vote of 58.65 percent to 41.35 percent. The other interior counties in which Proposition 8 failed to receive a majority of votes were Alpine County and Mono County. 
|Population and registered voters|
|Total population ||198,889|
|Registered voters  [note 2]||101,849||51.2%|
|Democratic–Republican spread ||+23,773||+23.3%|
|American Independent ||2,835||2.8%|
|Peace and Freedom ||376||0.4%|
|Americans Elect ||4||0.0%|
|No party preference ||24,076||23.6%|
|Cities by population and voter registration 2013|
|City||Population ||Registered voters  |
|Democratic ||Republican ||D–R spread ||Other ||No party preference |
|U.S. Decennial Census  |
1790-1960  1900-1990 
1990-2000  2010  2020 
|Race / Ethnicity||Pop 2010 ||Pop 2020 ||% 2010||% 2020|
|White alone (NH)||100,240||93,911||49.91%||43.40%|
|Black or African American alone (NH)||4,752||5,722||2.37%||2.64%|
|Native American or Alaska Native alone (NH)||1,098||948||0.55%||0.44%|
|Asian alone (NH)||24,640||29,872||12.77%||13.80%|
|Pacific Islander alone (NH)||817||1,079||0.41%||0.50%|
|Some Other Race alone (NH)||443||1,278||0.22%||0.59%|
|Mixed Race/Multi-Racial (NH)||6,906||11,893||3.44%||5.50%|
|Hispanic or Latino (any race)||60,953||71,700||30.35%||33.13%|
Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.
|Population, race, and income|
|Total population ||198,889|
|Black or African American ||5,006||2.5%|
|American Indian or Alaska Native ||2,485||1.2%|
|Native Hawaiian or other Pacific Islander ||1,112||0.6%|
|Some other race ||20,510||10.3%|
|Two or more races ||11,416||5.7%|
|Hispanic or Latino (of any race) ||59,340||29.8%|
|Per capita income ||$28,631|
|Median household income ||$57,920|
|Median family income ||$74,991|
|Places by population and race|
|Place||Type ||Population ||White ||Other  |
|Asian ||Black or African|
|Native American  |
|Hispanic or Latino|
(of any race) 
|University of California, Davis||CDP||6,805||43.6%||10.8%||41.2%||1.6%||2.8%||13.9%|
|Places by population and income|
|Place||Type ||Population ||Per capita income ||Median household income ||Median family income |
|University of California, Davis||CDP||6,805||$7,138||$26,053||$26,875|
The 2010 United States Census reported that Yolo County had a population of 200,849. The ethnic makeup of Yolo County was 126,883 (63.2%) White, 5,208 (2.6%) African American, 2,214 (1.1%) Native American, 26,052 (13.0%) Asian, 910 (0.5%) Pacific Islander, 27,882 (13.9%) from other races, and 11,700 (5.8%) from two or more races. Hispanic or Latino of any race were 60,953 persons (30.3%). 
|Population reported at 2010 United States Census|
|University of California, Davis||5,786||2,443||144||22||2,443||7||364||363||728|
|All others not CDPs (combined)||10,369||7,657||89||146||375||28||1,663||411||3,284|
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 inhabitants per square mile (64/km2). There were 61,587 housing units at an average density of 61 per square mile (23/km2). The ethnic makeup of the county was 67.7% White, 2.0% Black or African American, 1.2% Native American, 9.9% Asian, 0.3% Pacific Islander, 13.8% from other races, and 5.2% from two or more races. 25.9% 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.
The county's public schools are managed by the Yolo County Office of Education.
The population ranking of the following table is based on the 2010 census of Yolo County. 
|Rank||City/town/etc.||Municipal type||Population (2010 Census)|
|5||University of California Davis||CDP||5,786|
|14||Rumsey Indian Rancheria ||AIAN||77|
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Woodland is a city in and the county seat of Yolo County, California, located approximately 15 miles (24 km) northwest of Sacramento, and is a part of the Sacramento metropolitan area. The population was 61,032 at the 2020 census.
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