Rio Oso is a CDP located in Sutter County, California. Rio Oso has a 2026 population of 436. Rio Oso is currently growing at a rate of 1.16% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.
The median household income in Rio Oso is $111,250 with a poverty rate of 4.12%. The median age in Rio Oso is 44.1 years: 42.6 years for males, and 48.3 years for females. For every 100 females there are 125.3 males.
Data after 2023 is projected based on recent change
Overall: 44.1 years
Female: 48.3 years
Male: 42.6 years
There are 321 adults, (103 of whom are seniors) in Rio Oso.
Female: 194 (44.4%)
Male: 243 (55.6%)
The racial composition of Rio Oso includes 73.46% White, 10.3% Asian, and smaller percentages for other race, Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 321 | 73.46% |
| Two or more races | 52 | 11.9% |
| Asian | 45 | 10.3% |
| Other race | 10 | 2.29% |
| Black or African American | 9 | 2.06% |
Rio Oso 's average per capita income is $69,167. Household income levels show a median of $111,250. The poverty rate stands at 4.12%.
| Name | Median ↓ | Mean |
|---|---|---|
| Families | $146,667 | $165,371 |
| Married Families | $146,667 | - |
| Households | $111,250 | $141,635 |
| Non Families | - | $41,524 |
Average Income
Median Household Income
Poverty Rate