Glenn County, California
|County of Glenn|
Images, from top down, left to right: A view from Interstate 5 in Glenn County, a scene in Willows, Gianella Bridge
|Named for||Hugh J. Glenn|
|• Chair||Grant Carmon|
|• Vice Chair||Jim Yoder|
|• Board of Supervisors |
|• County Administrative Officer||Scott De Moss|
|• Total||1,327 sq mi (3,440 km2)|
|• Land||1,314 sq mi (3,400 km2)|
|• Water||13 sq mi (30 km2)|
|Highest elevation||7,451 ft (2,271 m)|
|• Density||22/sq mi (8.4/km2)|
|Time zone||UTC−8 (Pacific Standard Time)|
|• Summer (DST)||UTC−7 (Pacific Daylight Time)|
|GNIS feature ID||277275|
|Website||Glenn County, California|
Glenn County is a county located in the U.S. state of California. As of the 2020 census, the population was 28,917.  The county seat is Willows.  It is located in the Sacramento Valley, in the northern part of the California Central Valley. The Grindstone Rancheria, reservation of the Grindstone Indian Rancheria of Wintun-Wailaki Indians, is located in Glenn County.
Glenn County split from Colusa County in 1891, from parts of Colusa County. It was named for Dr. Hugh J. Glenn, who purchased 8,000 acres (32.4 km2) in the northest end of Rancho Jacinto in 1867. He became the largest wheat farmer in the state during his lifetime and a man of great prominence in political and commercial life in California.    
According to the U.S. Census Bureau, the county has a total area of 1,327 square miles (3,440 km2), of which 1,314 square miles (3,400 km2) is land and 13 square miles (34 km2) (1.0%) is water. 
|U.S. Decennial Census   |
1790–1960  1900–1990 
1990–2000  2010  2020 
|Race / Ethnicity||Pop 2010 ||Pop 2020 ||% 2010||% 2020|
|White alone (NH)||15,717||13,897||55.89%||48.06%|
|Black or African American alone (NH)||192||140||0.68%||0.48%|
|Native American or Alaska Native alone (NH)||477||531||1.70%||1.84%|
|Asian alone (NH)||674||626||2.40%||2.16%|
|Pacific Islander alone (NH)||22||39||0.08%||0.13%|
|Some Other Race alone (NH)||39||144||0.14%||0.50%|
|Mixed Race/Multi-Racial (NH)||462||999||1.64%||3.45%|
|Hispanic or Latino (any race)||10,539||12,541||37.48%||43.37%|
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 ||28,027|
|Black or African American ||261||0.9%|
|American Indian or Alaska Native ||768||2.7%|
|Native Hawaiian or other Pacific Islander ||9||0.0%|
|Some other race ||3,460||12.3%|
|Two or more races ||941||3.4%|
|Hispanic or Latino (of any race) ||10,270||36.6%|
|Per capita income ||$21,254|
|Median household income ||$43,239|
|Median family income ||$51,067|
|Places by population and race|
|Place||Type ||Population ||White ||Other  |
|Asian ||Black or African|
|Native American  |
|Hispanic or Latino|
(of any race) 
|Places by population and income|
|Place||Type ||Population ||Per capita income ||Median household income ||Median family income |
The 2010 United States Census reported that Glenn County had a population of 28,122. The racial makeup of Glenn County was 19,990 (71.1%) White, 231 (0.8%) African American, 619 (2.2%) Native American, 722 (2.6%) Asian, 24 (0.1%) Pacific Islander, 5,522 (19.6%) from other races, and 1,014 (3.6%) from two or more races. Hispanic or Latino of any race were 10,539 persons (37.5%). 
|Population reported at 2010 United States Census|
| Hispanic |
(of any race)
| Hispanic |
(of any race)
| Hispanic |
(of any race)
| Hispanic |
(of any race)
|All others not CDPs (combined)||12,448||9,635||98||321||183||12||1,753||446||3,699|
As of the census  of 2000, there were 26,453 people, 9,172 households, and 6,732 families residing in the county. The population density was 20 people per square mile (8/km2). There were 9,982 housing units at an average density of 8 per square mile (3/km2). The racial makeup of the county was 71.8% White, 0.6% Black or African American, 2.1% Native American, 3.4% Asian, 0.1% Pacific Islander, 18.2% from other races, and 3.9% from two or more races. 29.6% of the population were Hispanic or Latino of any race. 10.8% were of German, 9.4% American, 6.2% English and 5.9% Irish ancestry according to Census 2000. 69.5% spoke English, 27.0% Spanish and 2.1% Hmong as their first language.
There were 9,172 households, out of which 38.1% had children under the age of 18 living with them, 56.7% were married couples living together, 10.9% had a female householder with no husband present, and 26.6% were non-families. 22.0% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.84 and the average family size was 3.33.
In the county, the population was spread out, with 30.8% under the age of 18, 8.7% from 18 to 24, 26.8% from 25 to 44, 20.7% from 45 to 64, and 13.0% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 102.2 males. For every 100 females age 18 and over, there were 99.5 males.
The median income for a household in the county was $32,107, and the median income for a family was $37,023. Males had a median income of $29,480 versus $21,766 for females. The per capita income for the county was $14,069. About 12.5% of families and 18.1% of the population were below the poverty line, including 26.3% of those under age 18 and 7.6% of those age 65 or over.
|Population and registered voters|
|Total population ||28,027|
|Registered voters  [note 3]||12,266||43.8%|
|American Independent ||461||3.8%|
|Peace and Freedom ||45||0.4%|
|Americans Elect ||0||0.0%|
|No party preference ||2,319||18.9%|
|Cities by population and voter registration|
|City||Population ||Registered voters  |
|Democratic ||Republican ||D–R spread ||Other ||No party preference |
Glenn is a strongly Republican county in Presidential and congressional elections. The last Democrat to win a majority in the county was Lyndon Johnson in 1964.
Glenn County is split between California's 1st and 3rd congressional districts, represented by Doug LaMalfa ( R – Richvale ) and Kevin Kiley ( R – Rocklin ), respectively. 
In the State Assembly, Glenn County is in the 3rd Assembly District , represented by Republican James Gallagher.  In the State Senate, the county is in the 4th Senate District , represented by Democrat Marie Alvarado-Gil. 
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 ||54||1.93|
|Forcible rape ||2||0.07|
|Aggravated assault ||42||1.50|
|Property crime ||313||11.17|
|Larceny-theft  ||340||12.13|
|Motor vehicle theft ||49||1.75|
|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
Glenn Ride runs buses from Willows to Hamilton City, and on into Chico (Butte County). The nearest Amtrak station is in Chico.
Willows-Glenn County Airport and Haigh Field are both general aviation airports.
California Northern Railroad shortline serves Willows. The main line runs north to Tehama and south to Davis, where the railroad interchanges with the Union Pacific Railroad. Prior to the line being leased to the California Northern, the route was operated by Southern Pacific and was known as the West Side Line. The railroad first reached Willows on December 28, 1879, from Davis. In 1882 the extension from Willows to Tehama was completed. In 1884 the West Side and Mendocino Railroad constructed a line east from Willows to Fruto.[ citation needed ]
The population ranking of the following table is based on the 2010 census of Glenn County. 
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)|
|5||Grindstone Rancheria ||AIAN||164|
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Coordinates: 39°35′N122°23′W / 39.59°N 122.39°W