Nicasio is a CDP located in Marin County, California. Nicasio has a 2025 population of 104 . Nicasio is currently growing at a rate of 7.22% annually but its population has decreased by -15.45% since the most recent census, which recorded a population of 123 in 2020.
The average household income in Nicasio is $402,405 with a poverty rate of 0%. The median age in Nicasio is 53.2 years: 51.9 years for males, and 53.5 years for females. For every 100 females there are 117.3 males.
Data after 2023 is projected based on recent change
The racial composition of Nicasio includes 94.69% White, and smaller percentages for Asian and multiracial populations.
White (94.69%)
Two or more races (3.54%)
Asian (1.77%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 107 | 94.69% |
| Two or more races | 4 | 3.54% |
| Asian | 2 | 1.77% |
Married
Widowed
Divorced
Separated
Never Married
Nicasio's average per capita income is $88,958. Household income levels show a median of $236,250. The poverty rate stands at 0%.
Name | Median | Mean |
|---|---|---|
| Families | $250,001 | $501,069 |
| Married Families | $250,001 | - |
| Households | $236,250 | $402,405 |
| Non Families | - | - |
Average Income
Median Household Income
Poverty Rate