Mill Valley, CA demographics:
population, income, and more

Total population
14,012
-0.4% year-over-year change
Median household income
$206,212/yr
-1.1% year-over-year change
Housing units
6,418
1.0% year-over-year change

Mill Valley population

How many people live in Mill Valley

Mill Valley is home to 14,012 residents, according to the most recent Census data. Gender-wise, 48.1% of Mill Valley locals are male, and 51.9% are female.

Total population
14,012
-0.4% year-over-year change
Gender ratio
Male
48.1%
6,741
Female
51.9%
7,271
Value Percent YoY change
Male 6,741 48.1% 0.0%
Female 7,271 51.9% -0.8%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Mill Valley is 49, with the population distributed as follows: about 13.8% are children under 15, then 11.6% are in the 15 to 24 age group. Adults between 25 and 44 make up 19.4% of the population, while another 31.6% fall into the 45 to 64 bracket. Finally, around 23.5% are 65 or older.

Median age
48.7
Age breakdown
Under 15
13.8%
15 to 24
11.6%
25 to 44
19.4%
45 to 64
31.6%
Over 65
23.5%
Value Percent YoY change
Under 15 1,939 13.8% -9.7%
15 to 24 1,630 11.6% 1.3%
25 to 44 2,724 19.4% 0.9%
45 to 64 4,432 31.6% -2.3%
Over 65 3,287 23.5% 6.9%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Mill Valley, 79.9% of the population are US-born citizens, while 14.3% have gained naturalized citizenship. At the same time, 5.8% of residents are non-citizens. As for race, 81.2% of locals are Caucasian, 0.8% are African American and 8.4% have Asian roots. There’s also a share of 7% that includes residents with two or more races.

Citizenship
U.S.-born citizens
79.9%
Non-U.S.-born citizens
14.3%
Non-citizens
5.8%
Value Percent YoY change
U.S.-born citizens 11,195 79.9% 2.0%
Non-U.S.-born citizens 2,000 14.3% -7.9%
Non-citizens 817 5.8% -10.9%
Racial breakdown
White
81.2%
Black or African American
0.8%
American Indian and Alaska Native
0.2%
Asian
8.4%
Native Hawaiian and other Pacific Islander
0%
Two or more races
7%
Other
2.4%
Value Percent
White 11,382 81.2%
Black or African American 112 0.8%
American Indian and Alaska Native 24 0.2%
Asian 1,176 8.4%
Two or more races 975 7%
Other 343 2.4%

Households in Mill Valley

A peek inside Mill Valley households

Mill Valley has 5,688 households, with an average of 2 members in each. Of these, 64.5% are families, while the remaining 35.5% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
5,688
3.1% year-over-year change
Average people per household
2
Non-family households
2,019
Family households
3,669
Value Percent YoY change
Non-family households 2,019 35.5% 9.8%
Family households 3,669 64.5% -0.3%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Mill Valley

The housing landscape of Mill Valley

Mill Valley's housing consists of 6,418 units, with 69.7% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 8.7% and offer a more compact, shared living style.

Housing units
6,418
1.0% year-over-year change
Housing types
Value Percent
1 unit, detached 4,473 69.7%
1 unit, attached 559 8.7%
2 units 330 5.1%
3 or 4 units 197 3.1%
5 to 9 units 292 4.6%
10 to 19 units 208 3.2%
20 to 49 units 151 2.4%
50 or more units 208 3.2%
Homes built since 2020
30
0.0% year-over-year change

The age of buildings in Mill Valley

In Mill Valley, the median construction year is 1958. About 28.2% of homes were built before the 1940s, with another 11.6% going up by 1949. Most development happened in the second half of the 20th century. Then, 1.5% of homes were added from 2000 to 2009, 6% between 2010 and 2019, and 0.5% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 1,807 28.2% 5.5%
Built between 1940 and 1949 741 11.6% 7.1%
Built between 1950 and 1959 880 13.7% -11.5%
Built between 1960 and 1969 1,068 16.6% 4.7%
Built between 1970 and 1979 627 9.8% 2.8%
Built between 1980 and 1989 628 9.8% 8.1%
Built between 1990 and 1999 158 2.5% -17.3%
Built between 2000 and 2009 94 1.5% -44.0%
Built between 2010 and 2019 385 6% 8.8%
Built in 2020 or later 30 0.5% 0.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Mill Valley occupancy rates

Out of the 5,688 occupied housing units in Mill Valley, 66.2% are owner-occupied, while 33.8% are lived in by tenants. Meanwhile, 11.4% of all homes on the local market sit vacant.

Occupied housing units
5,688
3.1% year-over-year change
Occupancy breakdown
Renter occupied
1,921
Owner occupied
3,767
Value Percent YoY
change
Renter occupied 1,921 33.8% 2.8%
Owner occupied 3,767 66.2% 3.2%
Unoccupied housing units
11.4%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Mill Valley housing costs

Housing costs in Mill Valley come to a median of $3,983 per month, while tenants specifically pay a median gross rent of $3,278.

Median housing costs per month
$3,983/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.
Median gross rent in Mill Valley
$3,278/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Mill Valley

Mill Valley education at a glance

About 9.8% of the population in Mill Valley went to high school, while 14.4% pursued college studies. Another 4.7% earned an associate degree and 37.5% hold a bachelor’s. Meanwhile, 32.9% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 90 0.8% 42.9%
High school diploma 1,112 9.8% 16.1%
College diploma 1,637 14.4% 2.8%
Associate degree 541 4.7% 0.0%
Bachelor's degree 4,275 37.5% 1.8%
Graduate degree 3,750 32.9% -2.8%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Mill Valley

How much people earn in Mill Valley

The average annual household income in Mill Valley was $294,061 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a -4.6% change from the previous year. At the same time, the median income stood at $206,212, reflecting a -1.1% shift over the same period.

Average household income in Mill Valley
$294,061/year
-4.6% year-over-year change
Median household income in Mill Valley
$206,212/year
-1.1% year-over-year change

Mill Valley income by age

In Mill Valley, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $206,555. Those with someone between 45 and 64 in charge, often well established professionally, earn $250,001 overall. Overall, 94.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $206,555 -12.4%
45 - 64 $250,001 0.0%
Over 65 $133,023 -19.1%
Above poverty level
13,128
Below poverty level
826
Value Percent YoY
change
Above poverty level 13,128 94.1% -1.1%
Below poverty level 826 5.9% 18.2%

Average renter income in Mill Valley

To get a better sense of what renters earn on average in Mill Valley, their median household income was $140,990 according to 2022 Census data. In addition, the rent-to-income ratio in the area, at 27.9%, shows what portion of their earnings goes toward housing expenses.

Renter median household income
$140,990
Rent-to-income ratio
27.9%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Mill Valley

Workforce and job types in Mill Valley

The job market in Mill Valley is powered by 6,577 working residents, spread across a range of industries and roles. 93.6% of the working population are employed in professional or administrative positions, while 6.4% are in hands-on or service-based jobs. Also, 22.3% run their own businesses, 61.6% are employed by private companies, and 8.3% work in the public sector.

Workforce demographics

Working population
6,577
0.6% year-over-year change
White collar
6,158
Blue collar
419
Value Percent YoY change
White collar 6,158 93.6% -0.1%
Blue collar 419 6.4% 11.7%
Employer type
Self employees
22.3%
Private companies
61.6%
Governmental workers
8.3%
Not for profit companies
7.8%
Value Percent YoY change
Self employees 1,468 22.3% 10.1%
Private companies 4,054 61.6% -2.9%
Governmental workers 545 8.3% -6.8%
Not for profit companies 510 7.8% 14.3%
Unemployment rate
8.8%
5.0% year-over-year change

Available workforce

The unemployment rate in Mill Valley stands at 8.8%, representing the share of the workforce currently without a job and actively looking for one.

For renters, the unemployment rate helps paint a picture of job security and financial stability in the area. Rates around 4% to 5% are considered typical. A lower-than-average rate might suggest strong job prospects and a thriving local economy, while a higher rate could hint at fewer opportunities—both useful to consider when planning a move.

Transportation in Mill Valley

How people get around in Mill Valley

In Mill Valley, the average commute time is 25 minutes. Commuting methods vary: 52.3% of residents travel by personal vehicle and 5% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Commute time
25 min
Means of transportation
Value Percent YoY change
Car 3,399 52.3% -2.0%
Bus or trolleybus 31 0.5% -77.9%
Ferryboat 73 1.1% 160.7%
Bicycle 71 1.1% 195.8%
Walk 322 5% -5.3%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Mill Valley by zipcode?

Zipcode Population Number of households Median income Average income
94904 12,815 5,558 $169,118 $302,312
94930 8,406 3,565 $145,362 $192,092
94941 32,706 12,916 $209,870 $294,959

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FAQs about Mill Valley demographics 

What is the total population of Mill Valley?

Mill Valley has a total population of 14,012 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -0.4% compared to a year ago.

What is the gender ratio in Mill Valley?

The gender ratio in Mill Valley is as follows:
  • 48.1% males (6,741 residents)
  • 51.9% females (7,271 residents)

What is the median age in Mill Valley?

The median age in Mill Valley is 48.7.

What is the age distribution of the population in Mill Valley?

The age distribution in Mill Valley is as follows:
  • Under 15: 13.8% (1,939 residents)
  • Ages 15-24: 11.6% (1,630 residents)
  • Ages 25-44: 19.4% (2,724 residents)
  • Ages 45-64: 31.6% (4,432 residents)
  • Over 65: 23.5% (3,287 residents)

What is the racial and ethnic makeup of Mill Valley?

The racial and ethnic makeup of Mill Valley is as follows:
  • White: 81.2% (11,382 residents)
  • Black or African American: 0.8% (112 residents)
  • American Indian and Alaska Native: 0.2% (24 residents)
  • Asian: 8.4% (1,176 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 7% (975 residents)
  • Other: 2.4% (343 residents)

What percentage of the population in Mill Valley are U.S.-born citizens?

U.S.-born citizens represent 79.9% of the population in Mill Valley.

How many housing units are there in Mill Valley?

There are 6,418 housing units in Mill Valley, reflecting a +1.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Mill Valley and what is the average household size?

Mill Valley has a total of 5,688 households, with an average of 2 people in each.

What is the median household income in Mill Valley?

Mill Valley has a median household income of $206,212, representing a -1.1% shift from the previous year, according to the U.S. Census Bureau.

What is the employment rate and job market overview for Mill Valley?

The employment rate is 91.2% in Mill Valley, with a workforce of 6,577 residents. Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 93.6% (6,158 residents)
  • Blue-collar workers: 6.4% (419 residents)

Places of employment:
  • Self-employed: 22.3% (1,468 residents)
  • Private companies: 61.6% (4,054 residents)
  • Governmental workers: 8.3% (545 residents)
  • Not-for-profit companies: 7.8% (510 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025