2025 Compare Cities People:
Mill Valley, CA vs San Anselmo, CA

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Highlights
- San Anselmo is 0% more densely populated than Mill Valley.
- People are 0.3% more likely to be married in San Anselmo.
- The Median Age is 3.0 years younger in San Anselmo.
 Mill Valley, CASan Anselmo, CAUnited States
 Population  Unlock12,795329,725,481
 Female Population52.5%  Unlock50.5%
 Male Population47.5%  Unlock49.5%
 Median Age  Unlock44.938.4
 space3
 Population - 201013,934  Unlock309,327,143
 Population - 2000  Unlock12,378285,036,114
 Population - 199013,038  Unlock251,960,433
 Pop. 2000 to Now  Unlock1.1%15.6%
 Pop. 1990 to Now9.9%  Unlock30.8%
 space4
 Population Density  Unlock4,779.693.4
 Land Area4.8  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Mill Valley, CASan Anselmo, CAUnited States
 Age 0 to 42.9%  Unlock5.9%
 Age 5 to 9  Unlock7.4%6.1%
 Age 10 to 146.3%  Unlock6.6%
 Age 15 to 17  Unlock4.7%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock3.7%5.2%
 Age 25 to 347.3%  Unlock13.8%
 Age 35 to 44  Unlock12.8%12.9%
 Age 45 to 5418.4%  Unlock12.6%
 Age 55 to 59  Unlock9.7%6.7%
 Age 60 to 647.1%  Unlock6.3%
 Age 65 to 74  Unlock12.1%9.6%
 Age 75 to 846.5%  Unlock4.5%
 Age 85 and over  Unlock1.1%1.9%
 space1
 Race
 Mill Valley, CASan Anselmo, CAUnited States
 White83.0%  Unlock59.4%
 Black  Unlock1.7%12.2%
 Asian6.1%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races5.4%  Unlock3.2%
 Hispanic  Unlock5.7%18.4%
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 Marriage & Family
 Mill Valley, CASan Anselmo, CAUnited States
 Married Population56.1%  Unlock49.8%
     Currently Married  Unlock54.8%48.0%
 Married but Separated0.5%  Unlock1.8%
 Single Population  Unlock43.7%50.2%
 Never Married26.9%  Unlock33.8%
 Divorced  Unlock13.7%10.8%
 Widowed4.5%  Unlock5.6%
 space5
 Household Size  Unlock2.552.60
 Households5,622  Unlock124,010,992
 Family Households  Unlock3,34880,755,759
     Married couple, w/children35.2%  Unlock30.5%
     Married couple, no children  Unlock42.4%42.9%
 Non Family Households1,808  Unlock43,255,233
     Single householder, w/children  Unlock11.4%15.8%
     Single householder, no children5.6%  Unlock10.8%
Reviews for Mill Valley    7 Reviews

I lived in southern Marin County for 20 years and lived it. Just moved  More

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Over 15 years ago

Mill Valley is a perfect place to live and raise a family, if you don't mind a cost of living index of 233. Don't distress - go mountain biking or hiking with  More

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Over 16 years ago

Good weather all year around. Great public schools. Cost of living very high. Crime low wonderful outdoor activities nearby like hiking, beaches,  More

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Reviews for San Anselmo    3 Reviews

I've lived here for over forty five years and I can't wait to leave! The cost of living is ridiculous and, though the statistics about population growth always appear  More

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We love, love, love San Anselmo. It has great schools, is very walkable/bikeable, is not a far walk or bike from that funky town of Fairfax, everyone is friendly! Very  More

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Over 18 years ago

We love it here, but the cost of housing is astronomical, and has us rethinking whether we can stay here much longer. Considering first mortgage, second mortgage and  More

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