Nicasio Flag

Nicasio

County:
Marin County
County Seat:
No
Area (mi²):
1.305
State:
California

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.

104
Total Population
80
Density (mi²)
7 7.22%
Growth

Nicasio Population

Nicasio Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Nicasio includes 94.69% White, and smaller percentages for Asian and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White10794.69%
Two or more races43.54%
Asian21.77%

Nicasio Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Nicasio's average per capita income is $88,958. Household income levels show a median of $236,250. The poverty rate stands at 0%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Families$250,001$501,069
Married Families$250,001-
Households$236,250$402,405
Non Families--

$88,958

Average Income

$236,250

Median Household Income

0%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)