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Colusa County, California

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Colusa County
County
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Colusa National Wildlife Refuge
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Butte Sink
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Bear Valley
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Arbuckle
Mendocino Forest
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Location in the state of California
CountryUnited States
StateCalifornia
RegionSacramento Valley
IncorporatedFebruary 18, 1850[1]
Named forRancho Colus
County seatColusa
Largest cityColusa (population)
Williams (area)
Government
 • TypeCouncil–CAO
 • Chair[2]Jose Merced Corona
 • Vice Chair[3]Janice Bell
 • Board of Supervisors[4]
Supervisors
  • Jose Merced Corona
  • Daurice Kalfsbeek Smith
  • Kent S. Boes
  • Randy Wilson
  • Janice Bell
 • County Administrative OfficerJoshua Pack
Area
 • TotalTemplate:Infobox settlement/areadisp
 • LandTemplate:Infobox settlement/areadisp
 • WaterTemplate:Infobox settlement/areadisp
Highest elevation
[5]
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Population
 (2020)
 • Total21,839
 • Estimate 
(2025)
21,836 Template:Loss
 • DensityTemplate:Infobox settlement/densdisp
GDP
[6]
 • Total$1.781 billion (2022)
Time zoneUTC-8 (Pacific Time Zone)
 • Summer (DST)UTC-7 (Pacific Daylight Time)
Area code530
Congressional district1st
Websitewww.countyofcolusa.org

Colusa County (/kəˈluːsə/ (About this soundlisten)) is a county located in the U.S. state of California. As of the 2020 census, the population was 21,839.[7] The county seat is Colusa.[8] It is in the northern Sacramento Valley, northwest of the state capital, Sacramento.

History

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Colusa County is one of the original counties of California, created in 1850 at the time of statehood. and the name was spelled Colusi County in 1893, Parts of the county's territory were given to Tehama County in 1856 and to Glenn County in 1891.[9]

The county was named after the 1844 Rancho Colus Mexican land grant to John Bidwell. The name of the county in the original state legislative act of 1850 was spelled Colusi, and often in newspapers was spelled Coluse.[10][11] The word is derived from the name of a Patwin village known as Ko'-roo or Korusi located on the west side of the Sacramento River on the site of the present-day city of Colusa.[12][13] The name was established as Colusa by 1855.[9]

Early history

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Present-day Colusa County was originally home to the Patwin band of the Wintun people,[14] whose territory included areas along the Sacramento River as well as lands extending west towards Lake County, bounded in the north by the sources of Stony Creek near Stonyford and in the south by Putah Creek.[15]

Linguistically, the Patwin people in the Colusa area spoke two dialects of the Southern Wintuan language. River Patwin was spoken in villages along the Sacramento River, including at Korusi, site of the present city of Colusa. Hill Patwin was spoken in the plains and foothills to the west.[14]

European settlement

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Present-day Colusa County was included as part of three Mexican land grants: John Bidwell's smaller 1845 Rancho Colus grant, which included the modern city of Colusa;[16] the larger 1844 Rancho Jimeno grant, which surrounded the Colus grant;[17][16] and the 1844 Larkin's Children grant, located upriver from Colusa near the present town of Princeton, California.[18][19]

Geography

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According to the U.S. Census Bureau, the county has a total area of 1,156 square miles (2,990 km2), of which 1,151 square miles (2,980 km2) is land and 5.6 square miles (15 km2) (0.5%) is water.[20] A large number of streams drain the county, including Elk Creek, Salt Creek, Stony Creek and Bear Creek.

The county's eastern boundary is formed, in part, by the Sacramento River.

Adjacent counties

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National protected areas

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Demographics

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Template:US Census population

2020 census

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As of the 2020 census, the county had a population of 21,839. The median age was 35.5 years, with 28.0% of residents under the age of 18 and 14.9% 65 years and older. For every 100 females there were 101.4 males, and for every 100 females age 18 and over there were 99.2 males age 18 and over.[21]

The racial makeup of the county was 42.9% White, 0.9% Black or African American, 2.3% American Indian and Alaska Native, 1.3% Asian, 0.4% Native Hawaiian and Pacific Islander, 32.7% from some other race,Template:Which? and 19.5% from two or more races. Hispanic or Latino residents of any race comprised 61.7% of the population.[22]

57.3% of residents lived in urban areas, while 42.7% lived in rural areas.[23]

There were 7,227 households in the county, of which 43.4% had children under the age of 18 living with them and 23.3% had a female householder with no spouse or partner present. About 20.7% of all households were made up of individuals and 10.4% had someone living alone who was 65 years of age or older.[21]

There were 8,099 housing units, of which 10.8% were vacant. Among occupied housing units, 61.1% were owner-occupied and 38.9% were renter-occupied. The homeowner vacancy rate was 1.3% and the rental vacancy rate was 3.9%.[21]

Racial and ethnic composition

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Colusa County, California – Racial and ethnic composition
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 may be of any race.
Race / Ethnicity (NH = Non-Hispanic) Pop 1980[24] Pop 1990[25] Pop 2000[26] Pop 2010[27] Pop 2020[28] % 1980 % 1990 % 2000 % 2010 % 2020
White alone (NH) 9,650 10,105 9,018 8,524 6,941 75.44% 62.09% 47.96% 39.80% 31.78%
Black or African American alone (NH) 69 81 88 168 182 0.54% 0.50% 0.47% 0.78% 0.83%
Native American or Alaska Native alone (NH) 194 302 316 296 280 1.52% 1.86% 1.68% 1.38% 1.28%
Asian alone (NH) 233 321 220 267 252 1.82% 1.97% 1.17% 1.25% 1.15%
Native Hawaiian or Pacific Islander alone (NH) x x 67 59 70 x x 0.36% 0.28% 0.32%
Other race alone (NH) 152 42 34 29 92 1.19% 0.26% 0.18% 0.14% 0.42%
Mixed race or Multiracial (NH) x x 309 272 546 x x 1.64% 1.27% 2.50%
Hispanic or Latino (any race) 2,493 5,424 8,752 11,804 13,476 19.49% 33.33% 46.54% 55.11% 61.71%
Total 12,791 16,275 18,804 21,419 21,839 100.00% 100.00% 100.00% 100.00% 100.00%

2010

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The 2010 United States census reported that Colusa County had a population of 21,419. The racial makeup of Colusa County was 13,854 (64.7%) White, 195 (0.9%) African American, 419 (2.0%) Native American, 281 (1.3%) Asian, 68 (0.3%) Pacific Islander, 5,838 (27.3%) from other races, and 764 (3.6%) from two or more races. Hispanic or Latino of any race were 11,804 persons (55.1%).[29]

2000 census

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As of the census[30] of 2000, there were 18,804 people, 6,097 households, and 4,578 families residing in the county. The population density was 16 people per square mile (6.2 people/km2). There were 6,774 housing units at an average density of 6 per square mile (2.3/km2). The racial makeup of the county was 64.3% White, 0.6% Black or African American, 2.3% Native American, 1.2% Asian, 0.4% Pacific Islander, 26.7% from other races, and 4.5% from two or more races. 46.5% of the population were Hispanic or Latino of any race. 8.5% were of German, 5.6% English, 5.5% American and 5.4% Irish ancestry according to Census 2000. 58.7% spoke English and 40.4% Spanish as their first language.

There were 6,097 households, out of which 41.4% had children under the age of 18 living with them, 59.6% were married couples living together, 9.6% had a female householder with no husband present, and 24.9% were non-families. 21.5% of all households were made up of individuals, and 10.1% had someone living alone who was 65 years of age or older. The average household size was 3.01 and the average family size was 3.51.

In the county, the population was spread out, with 31.6% under the age of 18, 10.3% from 18 to 24, 26.9% from 25 to 44, 19.8% from 45 to 64, and 11.4% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 103.4 males. For every 100 females age 18 and over, there were 103.8 males.

The median income for a household in the county was $35,062, and the median income for a family was $40,138. Males had a median income of $32,210 versus $21,521 for females. The per capita income for the county was $14,730. About 13.0% of families and 16.1% of the population were below the poverty line, including 19.5% of those under age 18 and 8.2% of those age 65 or over.

Politics

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Voter registration statistics

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Cities by population and voter registration

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Overview

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In its early history Colusa was one of the most reliable Democratic counties in California. Along with Mariposa County, it was one of only two counties in the Pacific States to support Alton B. Parker in 1904.[34] From 1880 until 1952, Colusa only went Republican during the GOP landslides of the Roaring Twenties. Since 1952, however, Colusa has become a strongly Republican county in Presidential and congressional elections, with Lyndon Johnson, in 1964, being the last Democrat to win the county.

United States presidential election results for Colusa County, California[35][36][37]
Year Republican Democratic Third party
No.  % No.  % No.  %
1892 645 31.08% 1,187 57.20% 243 11.71%
1896 581 30.86% 1,250 66.38% 52 2.76%
1900 648 35.98% 1,075 59.69% 78 4.33%
1904 885 46.78% 900 47.57% 107 5.66%
1908 730 38.58% 1,064 56.24% 98 5.18%
1912 3 0.11% 1,760 63.58% 1,005 36.31%
1916 1,011 31.82% 1,998 62.89% 168 5.29%
1920 1,645 61.24% 907 33.77% 134 4.99%
1924 1,127 43.84% 495 19.25% 949 36.91%
1928 1,752 56.30% 1,338 42.99% 22 0.71%
1932 1,095 27.50% 2,752 69.11% 135 3.39%
1936 1,186 28.15% 2,965 70.38% 62 1.47%
1940 1,774 39.74% 2,655 59.48% 35 0.78%
1944 1,579 42.92% 2,090 56.81% 10 0.27%
1948 1,803 46.22% 2,020 51.78% 78 2.00%
1952 2,824 59.81% 1,881 39.83% 17 0.36%
1956 2,474 53.23% 2,171 46.71% 3 0.06%
1960 2,497 51.37% 2,348 48.30% 16 0.33%
1964 1,811 39.32% 2,790 60.57% 5 0.11%
1968 2,361 51.58% 1,858 40.59% 358 7.82%
1972 2,715 57.56% 1,810 38.37% 192 4.07%
1976 2,733 52.74% 2,340 45.16% 109 2.10%
1980 2,897 58.00% 1,605 32.13% 493 9.87%
1984 3,388 65.30% 1,725 33.25% 75 1.45%
1988 3,077 59.49% 2,022 39.10% 73 1.41%
1992 2,589 45.94% 1,798 31.91% 1,248 22.15%
1996 3,047 54.29% 2,054 36.60% 511 9.11%
2000 3,629 64.92% 1,745 31.22% 216 3.86%
2004 4,142 67.17% 1,947 31.58% 77 1.25%
2008 3,733 58.07% 2,569 39.96% 127 1.98%
2012 3,601 59.68% 2,314 38.35% 119 1.97%
2016 3,551 53.54% 2,661 40.12% 420 6.33%
2020 4,559 57.27% 3,239 40.69% 163 2.05%
2024 4,414 62.87% 2,431 34.62% 176 2.51%
2016 1 33.33% 1 33.33% 1 33.33%


Colusa County is in Template:Representative.[38] In the State Assembly, Colusa County is in Template:Representative.[39] In the State Senate, the county is in Template:Representative.[40] On November 4, 2008, Colusa County voted 71.6% for Proposition 8 which amended the California Constitution to ban same-sex marriages.

Crime

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The following table includes the number of incidents reported and the rate per 1,000 persons for each type of offense.

Cities by population and crime rates

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Transportation

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Major highways

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Public transportation

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Colusa County Transit runs buses from Colusa to Williams, Arbuckle, Grimes and College City, with limited service to Maxwell.

Airports

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Colusa County Airport is a general-aviation airport located near the city of Colusa. The closest major airport is in Sacramento.

Communities

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Cities

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Census-designated places

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Unincorporated community

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Population ranking

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The population ranking of the following table is based on the 2010 census of Colusa County.[43]

† county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 † Colusa City 5,971
2 Williams City 5,123
3 Arbuckle CDP 3,028
4 Maxwell CDP 1,103
5 Grimes CDP 391
6 Princeton CDP 303
7 College City CDP 290
8 Lodoga CDP 197
9 Stonyford CDP 149
10 Colusa Rancheria[44] AIAN 76
11 Cortina Rancheria[45] AIAN 21

Education

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School districts include:[46]

California Historical Landmarks

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California Historical Landmarks in Colusa County:

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Letts Lake

See also

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Notes

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  1. ↑ 1.0 1.1 Percentage of registered voters with respect to total population. Percentages of party members with respect to registered voters follow.
  2. ↑ Only larceny-theft cases involving property over $400 in value are reported as property crimes.

References

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  1. ↑ "Chronology". California State Association of Counties. Archived from the original on January 29, 2016. Retrieved February 6, 2015.
  2. ↑ "District 1 | Colusa County, CA - Official Website".
  3. ↑ "District 5 | Colusa County, CA - Official Website".
  4. ↑ "Member & District Information | Colusa County, CA - Official Website".
  5. ↑ "Snow Mountain". Peakbagger.com. Retrieved May 13, 2015.
  6. ↑ "Gross Domestic Product: All Industries in Colusa County, CA". Federal Reserve Economic Data. Federal Reserve Bank of St. Louis.
  7. ↑ "Colusa County, California". United States Census Bureau. Retrieved January 30, 2022.
  8. ↑ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  9. ↑ 9.0 9.1 "The Creation of Our 58 Counties". California State Association of Counties. Retrieved March 3, 2019.
  10. ↑ The Statutes of California Passed at the First Session of the Legislature (PDF). San Jose: J. Winchester, State Printer. 1850. p. 62.
  11. ↑ "How Did Our 58 Counties Get Their Names?". California State Association of Counties. Retrieved March 3, 2019.
  12. ↑ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Washington, D.C.: Government Printing Office. pp. 88.
  13. ↑ Heizer, Robert; Hester, Thomas (1970). "Names and Locations of Some Ethnographic Patwin and Maidu Indian Villages" (PDF). Contributions of the University of California Archaeological Research Facility. 9: 84.
  14. ↑ 14.0 14.1 Golla, Victor (2011). California Indian Languages. Berkeley: University of California Press. pp. 143. ISBN 978-0520266674.
  15. ↑ Cook, Sherburne Friend (1976). The population of the California Indians, 1769-1970. Berkeley: University of California Press. p. 13.
  16. ↑ 16.0 16.1 Hoffman, Ogden (1862). Reports of Land Cases Determined in the United States District Court for the Northern District of California. San Francisco: Numa Hubert. pp. 37, 41.
  17. ↑ Plat of the Colus Rancho. San Francisco: U.S. Surveyor General's Office. 1860.
  18. ↑ Hague, Harlan (1995). Thomas O. Larkin: A Life of Patriotism and Profit in Old California. Norman: University of Oklahoma Press. p. 182. ISBN 0806127333.
  19. ↑ Grants of Land in California Made by Spanish or Mexican Authorities (PDF). Sacramento: California State Lands Commission. 1982. pp. 25–26.
  20. ↑ "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved September 24, 2015.
  21. ↑ 21.0 21.1 21.2 "2020 Decennial Census Demographic Profile (DP1)". United States Census Bureau. 2021. Retrieved December 21, 2025.
  22. ↑ "2020 Decennial Census Redistricting Data (Public Law 94-171)". United States Census Bureau. 2021. Retrieved December 21, 2025.
  23. ↑ "2020 Decennial Census Demographic and Housing Characteristics (DHC)". United States Census Bureau. 2023. Retrieved December 21, 2025.
  24. ↑ "California: 1980, General Social and Economic Characteristics, Part 1" (PDF). United States Census Bureau.
  25. ↑ "California: 1990, Part 1" (PDF). United States Census Bureau. Retrieved July 14, 2024.
  26. ↑ "P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Colusa County, California". United States Census Bureau.
  27. ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) – Colusa County, California". United States Census Bureau.
  28. ↑ "P2: Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) – Colusa County, California". United States Census Bureau.
  29. ↑ Template:USCensus2010CA
  30. ↑ "U.S. Census website". United States Census Bureau. Retrieved May 14, 2011.
  31. ↑ 31.00 31.01 31.02 31.03 31.04 31.05 31.06 31.07 31.08 31.09 31.10 31.11 "Statement of Vote, November 8, 2022, General Election" (PDF). California Secretary of State. California Secretary of State. Retrieved May 5, 2023.
  32. ↑ 32.0 32.1 U.S. Census Bureau. American Community Survey, 2011 American Community Survey 5-Year Estimates, Table B02001. U.S. Census website . Retrieved October 26, 2013.
  33. ↑ 33.0 33.1 33.2 33.3 33.4 33.5 California Secretary of State. February 10, 2013 - Report of Registration Archived November 3, 2013, at the Wayback Machine. Retrieved October 31, 2013.
  34. ↑ Menendez, Albert J.; The Geography of Presidential Elections in the United States, 1868-2004, pp. 153-155 ISBN 0786422173
  35. ↑ Bowen, Debra (December 13, 2008). "United States President by County" (PDF). Secretary of State of California. Archived (PDF) from the original on April 25, 2025. Retrieved October 3, 2025.
  36. ↑ Bowen, Debra (December 14, 2012). "President by County" (PDF). Secretary of State of California. Archived (PDF) from the original on March 24, 2025. Retrieved October 3, 2025.
  37. ↑ Padilla, Alex (December 16, 2016). "President by County" (PDF). Secretary of State of California. Archived (PDF) from the original on August 31, 2025. Retrieved October 3, 2025.
  38. ↑ Template:Cite GovTrack
  39. ↑ "Members Assembly". State of California. Retrieved October 17, 2025.
  40. ↑ "Senators". State of California. Retrieved October 17, 2025.
  41. ↑ 41.00 41.01 41.02 41.03 41.04 41.05 41.06 41.07 41.08 41.09 Office of the Attorney General, Department of Justice, State of California. Table 11: Crimes – 2009 Archived December 2, 2013, at the Wayback Machine. Retrieved November 14, 2013.
  42. ↑ 42.0 42.1 42.2 United States Department of Justice, Federal Bureau of Investigation. Crime in the United States, 2012, Table 8 (California). Retrieved November 14, 2013.
  43. ↑ "2010 U.S. Census website". United States Census Bureau. Retrieved December 29, 2015.
  44. ↑ Staff, Website Services & Coordination. "2010 Census Interactive Population Map (Text Version) - U.S. Census Bureau". www.census.gov.
  45. ↑ Staff, Website Services & Coordination. "2010 Census Interactive Population Map (Text Version) - U.S. Census Bureau". www.census.gov.
  46. ↑ Geography Division (December 18, 2020). 2020 Census - School District Reference Map: Colusa County, CA (PDF) (Map). Suitland, Maryland: U.S. Census Bureau. Retrieved March 21, 2026. - Text list
  47. ↑ Colusa County Courthouse
  48. ↑ Letts Valley
  49. ↑ Swift's Stone Corral
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Template:Geographic Location

Template:Colusa County, California Template:Sacramento Valley Template:California Coordinates: 39°11′N 122°14′W / 39.18°N 122.24°W / 39.18; -122.24

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