Legend says that the name "Richvale" was coined by con men to sell worthless plots of land to wheat farmers from Nebraska and Kansas. The developers changed the name from Selby Switch to Richvale in 1909. The place was settled in 1911, and a post office opened that same year. Farmers in the Midwest were shown lush pictures of California's San Joaquin Valley and Central Valley and sold land at outrageous prices. The soil near Richvale is nothing like the fertile soil of the San Joaquin Valley, being composed mostly of clay instead of loam. The dominant soil is Esquon clay, a poorly drained vertisol. The locals call the soil "adobe" due to its high clay content. The land is unsuitable for vineyards, orchards, and most other crops. Some buyers took one look at the soil and returned to the Midwest. Those who stayed built a community from the muddy ground up: a post office, roads, an irrigation and drainage district, a hotel, a church, a cooperative, a school, and a grocery store. During a second wave of migration Dust Bowl farmers came west during the Great Depression. Due to the adobe soil's ability to retain water and remain flooded, the ground makes a near-ideal rice paddy, and rice has become the primary crop of the area. Irrigation is provided by surface water from the plentiful Feather River. In 2005, of rice were served by Butte County Rice Growers Association. Current storage capacity is. With time and a lot of hard work, the town of Richvale lived up to its name as rice farming provided an abundant livelihood for the original settlers and their offspring. The history of Richvale was recently written by the Richvale Writing Group and published by The Community Foundation of Richvale in a book with 364 historical photographs.
Demographics
The 2010 United States Census reported that Richvale had a population of 244. The population density was 263.2 people per square mile. The racial makeup of Richvale was 216 White, 0 African American, 11 Native American, 0 Asian, 0 Pacific Islander, 10 from other races, and 7 from two or more races. Hispanic or Latino of any race were 27 persons. The Census reported that 244 people lived in households, 0 lived in non-institutionalized group quarters, and 0 were institutionalized. There were 89 households, out of which 29 had children under the age of 18 living in them, 53 were opposite-sex married couples living together, 5 had a female householder with no husband present, 8 had a male householder with no wife present. There were 11 unmarried opposite-sex partnerships, and 0 same-sex married couples or partnerships. 16 households were made up of individuals and 8 had someone living alone who was 65 years of age or older. The average household size was 2.74. There were 66 families ; the average family size was 3.11. The population was spread out with 64 people under the age of 18, 15 people aged 18 to 24, 56 people aged 25 to 44, 65 people aged 45 to 64, and 44 people who were 65 years of age or older. The median age was 40.5 years. For every 100 females, there were 112.2 males. For every 100 females age 18 and over, there were 104.5 males. There were 101 housing units at an average density of 108.9 per square mile, of which 89 were occupied, of which 70 were owner-occupied, and 19 were occupied by renters. The homeowner vacancy rate was 1.4%; the rental vacancy rate was 0%. 192 people lived in owner-occupied housing units and 52 people lived in rental housing units.