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The total population of Marin County is estimated to be 260,485 with 127,983 males (49.13%) and 132,502 females (50.87%). There are 4,519 more females than males in Marin County.
The median household income in Marin County was $141,608 in 2021, which marked an an increase of 3,738(2.71%) from $137,870 in 2020. This income is 189.81% of the U.S. median household income of $74,606 (all incomes in 2022 inflation-adjusted dollars).
Per the latest American Community Survey by the Census Bureau, Marin County sees its highest median household income among householders in the age group of 45 to 64 years old, at $193,231. Overall, the median household income for the county of Marin County stands at $136,214.
In Marin County, the median income for all workers aged 15 years and older, regardless of work hours, was $72,832 for males and $49,868 for females. However, when specifically considering full-time, year-round workers within the same age group, the median income was $124,150 for males and $96,527 for females.
In Marin County, the demographic landscape is diverse, spanning 6 distinct racial categories among households. Among these, Asian households have the highest median household income at $171,366, while Some Other Race households represent the opposite end with the lowest median household income of $75,480.
In 2022, the population of Marin County was 256,018, a 1.21% decrease year-by-year from 2021. Previously, in 2021, Marin County's population was 259,162, a decline of 0.81% compared to a population of 261,282 in 2020.
The median age in Marin County, CA is 47.1, as per 2021 ACS 5-Year Estimates. Of the total population, 16.10% were under the age of 15, 14.50% aged 15 to 29, 47.04% aged 30 to 64, 19.66% aged 65 to 84, and 2.70% were 85 years of age and older.
Racial distribution of Marin County population: 75.32% are White, 2.28% are Black or African American, 0.38% are American Indian and Alaska Native, 6.06% are Asian, 0.16% are Native Hawaiian and other Pacific Islander, 8.02% are some other race and 7.78% are multiracial.