Arbuckle is a census-designated place (CDP) in Colusa County, California, United States. The population was 3,028 at the 2010 census, up from 2,332 at the 2000 census. Arbuckle is situated in the southerly portion of Colusa County, approximately 20 miles (32 km) southwest of the City of Colusa, the county seat. The town is characterized by single-family residences, multiple-family units, some mobile homes, and commercial activities. Land surrounding Arbuckle is mostly agriculture including cultivated annual crops, and both active and unmaintained orchards (primarily almond). Regional access is provided by the north-south running Interstate 5.
According to the United States Census Bureau, the CDP has a total area of 1.8 square miles (4.7 km2), all of it land. Two streams drain the area, the Salt and Elk Creeks. The Salt Creek flows north in the area, then bends east, and is joined by Elk Creek. Both streams join Sand Creek a half mile northeast of the town, and flow in a northeast direction. Salt Creek is subject to periodic flooding during heavy rainfall.
Tacitus R. Arbuckle initially established a ranch here in 1866. The railroad came in 1875 and the town was founded and named for Arbuckle, on whose land it was built. The post office was established the following year, 1876.Frederick C. Weyand, United States military officer
The 2010 United States Census reported that Arbuckle had a population of 3,028. The population density was 1,721.2 people per square mile (664.6/km²). The racial makeup of Arbuckle was 1,746 (57.7%) White, 18 (0.6%) African American, 23 (0.8%) Native American, 18 (0.6%) Asian, 5 (0.2%) Pacific Islander, 1,124 (37.1%) from other races, and 94 (3.1%) from two or more races. Hispanic or Latino of any race were 2,116 persons (69.9%).
The Census reported that 3,028 people (100% of the population) lived in households, 0 (0%) lived in non-institutionalized group quarters, and 0 (0%) were institutionalized.
There were 868 households, out of which 481 (55.4%) had children under the age of 18 living in them, 518 (59.7%) were opposite-sex married couples living together, 125 (14.4%) had a female householder with no husband present, 77 (8.9%) had a male householder with no wife present. There were 61 (7.0%) unmarried opposite-sex partnerships, and 6 (0.7%) same-sex married couples or partnerships. 122 households (14.1%) were made up of individuals and 70 (8.1%) had someone living alone who was 65 years of age or older. The average household size was 3.49. There were 720 families (82.9% of all households); the average family size was 3.80.
The population was spread out with 982 people (32.4%) under the age of 18, 356 people (11.8%) aged 18 to 24, 824 people (27.2%) aged 25 to 44, 635 people (21.0%) aged 45 to 64, and 231 people (7.6%) who were 65 years of age or older. The median age was 28.3 years. For every 100 females there were 103.1 males. For every 100 females age 18 and over, there were 98.8 males.
There were 937 housing units at an average density of 532.6 per square mile (205.6/km²), of which 547 (63.0%) were owner-occupied, and 321 (37.0%) were occupied by renters. The homeowner vacancy rate was 4.0%; the rental vacancy rate was 2.7%. 1,899 people (62.7% of the population) lived in owner-occupied housing units and 1,129 people (37.3%) lived in rental housing units.
As of the census of 2000, there were 2,332 people, 650 households, and 533 families residing in the CDP. The population density was 1,695.3 people per square mile (652.5/km²). There were 679 housing units at an average density of 493.6 per square mile (190.0/km²). The racial makeup of the CDP was 50.21% White, 0.17% Black or African American, 2.10% Native American, 0.47% Asian, 0.09% Pacific Islander, 40.44% from other races, and 6.52% from two or more races. 70.75% of the population were Hispanic or Latino of any race.
There were 650 households out of which 52.6% had children under the age of 18 living with them, 63.2% were married couples living together, 12.6% had a female householder with no husband present, and 18.0% were non-families. 15.2% of all households were made up of individuals and 8.3% had someone living alone who was 65 years of age or older. The average household size was 3.59 and the average family size was 3.98.
In the CDP, the population was spread out with 35.9% under the age of 18, 12.0% from 18 to 24, 27.8% from 25 to 44, 15.7% from 45 to 64, and 8.5% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 105.6 males. For every 100 females age 18 and over, there were 106.5 males.
The median income for a household in the CDP was $35,463, and the median income for a family was $36,573. Males had a median income of $25,875 versus $22,865 for females. The per capita income for the CDP was $13,225. About 16.3% of families and 17.4% of the population were below the poverty line, including 22.9% of those under age 18 and 7.1% of those age 65 or over.
In the state legislature, Arbuckle is in the 4th Senate District, represented by Republican Jim Nielsen, and the 4th Assembly District, represented by Democrat Cecilia Aguiar-Curry. Federally, Arbuckle is in California's 3rd congressional district, represented by Democrat John Garamendi.