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 2026 population of 420. Muir Beach is currently growing at a rate of 1.69% 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 Muir Beach is $140,227 with a poverty rate of 8.04%. The median age in Muir Beach is 63.7 years: 63.3 years for males, and 64.3 years for females. For every 100 females there are 143.0 males.

420
Total Population
852
Density (mi²)
7 1.69%
Growth

Muir Beach Population

Muir Beach Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202642071.69%
202541371.72%

Median Age

Overall: 63.7 years
Female: 64.3 years
Male: 63.3 years

Muir Beach Adults

There are 290 adults, (134 of whom are seniors) in Muir Beach.

Sex Ratio

Female: 128 (41.2%)
Male: 183 (58.8%)

Demographics

The racial composition of Muir Beach includes 88.75% White, 3.54% other race, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White27688.75%
Two or more races247.72%
Other race113.54%
Race
Population ↓
Percentage (of total)
White27688.75%
Two or more races247.72%
Other race113.54%

Muir Beach Marital Status

Economics and Income Statistics

Muir Beach 's average per capita income is $90,000. Household income levels show a median of $140,227. The poverty rate stands at 8.04%.

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$201,964$313,092
Married Families$201,964-
Households$140,227$210,748
Non Families-$72,806

$90,000

Average Income

$140,227

Median Household Income

8.04%

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)