Cost of Living in Mill Valley, CA

With a cost of living index of 306, Mill Valley, CA is one of the most expensive cities in the United States. Living here is 206% more expensive than the national average and 162% above the California state average of 144. Mill Valley is a smaller community of 14,064 residents, where everyday costs can differ substantially from nearby larger cities.

Housing costs are the biggest factor in Mill Valley's cost of living. The median monthly rent is $3,313 (151% above the US median of $1,319), and the median home value sits at $2,000,001 (556% above the national median of $304,900). At current prices, the median home costs roughly 9.6x the median household income — a challenging ratio that puts homeownership out of reach for many residents.

The median household income in Mill Valley is $208,466, which is 177% higher than the national median of $75,149. Residents spend roughly 19% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum. While incomes are above average, they do not fully offset the higher cost of living.

Climate is another factor for anyone considering a move to Mill Valley. The area sees an average annual temperature of 57.7°F, with summers averaging 61°F and winters around 53°F. Annual rainfall totals 22.9 inches spread over roughly 71 days.

Everyday prices in the San Francisco-Oakland-Fremont, CA (Metropolitan Statistical Area) metro area tend to run above the national average. Out of 6 common grocery and utility items tracked by the Bureau of Labor Statistics, 6 are priced higher than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.