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| City | Mill Valley |
| State | California (CA) |
| County | Marin |
| Country | United States of America |
| Timezone | Pacific Time (America/Los_Angeles) |
| Latitude | 37.906111 |
| Longitude | -122.545 |
| Population | 14,012 |
| Density | 1135.5 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 94941, 94942 |
| Area Code | 510 |
| County Seat | San Rafael |
| School District | Tamalpais Union High School District |
Mill Valley is a locality in Marin County, California, United States. It has a population of 14,012. The population density is 1135.5 people per km². Mill Valley is located at 37.9061°N, 122.5450°W. It observes the Pacific Time (America/Los_Angeles) timezone. ZIP code: 94941.
Mill Valley unwinds along the eastern flank of Mount Tamalpais, a verdant embrace of redwood canyons and sun-drenched hillsides that exhales a perpetually cool, pine-scented air. It lies 4.7 miles south of San Rafael, CA (from San Rafael, CA: bearing 189°T), and is situated 2.0 miles south-south-west of Larkspur. Fog often drifts in from the Pacific, a soft, grey shroud that softens the sharp edges of the landscape and lends a dreamlike quality to the winding roads and clustered homes. The slopes are steep, giving the impression that the houses cling precariously to the earth, their rooftops peeking through a dense canopy of ancient trees. Creeks, swollen by seasonal rains, gurgle and rush through ravines, their waters reflecting the dappled sunlight that filters through the towering redwoods, a constant, murmuring counterpoint to the quiet hum of life in this Marin County haven. This place, Mill Valley, carries the echoes of its past, from the logging operations that once defined its early economy to its transformation into a haven for artists, musicians, and those seeking refuge from the urban sprawl. The historic downtown, with its charming shops and restaurants, retains a distinct character, a testament to the community's enduring appreciation for small-town life and independent spirit. The nearby Muir Woods National Monument, a cathedral of ancient redwoods, draws visitors from across the globe, offering a profound connection to the natural world that so defines this locality. The economic pulse of Mill Valley is now largely driven by its creative residents and the appeal of its scenic beauty, fostering a lifestyle that often prioritizes well-being and a deep connection to the surrounding wilderness.
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This page provides an embedded street and satellite map of Mill Valley, California — switch between views using the small square in the bottom left-hand corner of the map. Coordinates: 37.906111, -122.545. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Mill Valley and Marin County.
Detailed location data for Mill Valley includes the ZIP code (94941), telephone area code (510), county seat of Marin County (San Rafael), and school district assignment (Tamalpais Union High School District). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Mill Valley is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | July 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |