Muir Beach Flag

Muir Beach

County:
Marin County
County Seat:
No
Area (mi²):
0.493
State:
California

Muir Beach is a CDP located in Marin County, California. Muir Beach has a 2025 population of 431. Muir Beach is currently growing at a rate of 1.89% annually and its population has increased by 19.72% since the most recent census, which recorded a population of 360 in 2020.

The average household income in Muir Beach is $228,185 with a poverty rate of 10.03%.The median age in Muir Beach is 61.2 years: 59.5 years for males, and 63.7 years for females.

431
Total Population
875
Density (mi²)
8 1.89%
Growth

Muir Beach Population

Muir Beach Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Muir Beach includes 93.23% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White37293.23%
Two or more races276.77%

Muir Beach Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Muir Beach's average per capita income is $87,500. Household income levels show a median of $157,500. The poverty rate stands at 10.03%.

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$344,514
Married Families$250,001-
Households$157,500$228,185
Non Families-$56,019

$87,500

Average Income

$157,500

Median Household Income

10.03%

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)