Bend is a census-designated place in Tehama County, California, United States. Bend is located on the Sacramento River north-northeast of Red Bluff. Bend had a post office from 1897 to 1935. The community was originally known as Horsethief Bend; the name was changed to Sander's Bend and later shortened to Bend. The community was named after a nearby meander in the Sacramento River. The population was 603 at the 2020 census.
According to the United States Census Bureau, the CDP covers an area of 3.1 square miles (8.2 km<sup>2</sup>), 2.9 square miles (7.6 km<sup>2</sup>) of it land and 0.3 square miles (0.7 km<sup>2</sup>) of it (8.07%) water.
Bend first appeared as a census designated place in the 2010 U.S. census.
The 2020 United States census reported that Bend had a population of 603. The population density was . The racial makeup of Bend was 77.8% White, 0.5% African American, 1.8% Native American, 1.8% Asian, 0.3% Pacific Islander, 3.2% from other races, and 14.6% from two or more races. Hispanic or Latino of any race were 9.6% of the population.
The whole population lived in households. There were 260 households, out of which 16.5% included children under the age of 18, 53.1% were married-couple households, 3.8% were cohabiting couple households, 16.5% had a female householder with no partner present, and 26.5% had a male householder with no partner present. 36.9% of households were one person, and 21.9% were one person aged 65 or older. The average household size was 2.32. There were 158 families (60.8% of all households).
The age distribution was 20.2% under the age of 18, 5.1% aged 18 to 24, 15.8% aged 25 to 44, 29.5% aged 45 to 64, and 29.4% who were 65years of age or older. The median age was 54.5years. For every 100 females, there were 90.2 males.
There were 274 housing units at an average density of , of which 260 (94.9%) were occupied. Of these, 84.2% were owner-occupied, and 15.8% were occupied by renters.