2026 Compare Cities People:
Keller, TX vs Mill Valley, CA

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Highlights
- Mill Valley is 0% more densely populated than Keller.
- People are 17.3% less likely to be married in Mill Valley.
- The Median Age is 5.0 years older in Mill Valley.
 Keller, TXMill Valley, CAUnited States
 Population  Unlock14,240329,725,481
 Female Population49.8%  Unlock50.5%
 Male Population50.2%  Unlock49.5%
 Median Age  Unlock47.938.4
 space3
 Population - 201039,825  Unlock309,327,143
 Population - 2000  Unlock13,600285,036,114
 Population - 199013,683  Unlock251,960,433
 Pop. 2000 to Now  Unlock5.3%15.6%
 Pop. 1990 to Now243.1%  Unlock30.8%
 space4
 Population Density  Unlock2,989.793.4
 Land Area18.5  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
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 Est. Total Population By Age
 Keller, TXMill Valley, CAUnited States
 Age 0 to 44.8%  Unlock5.9%
 Age 5 to 9  Unlock5.8%6.1%
 Age 10 to 147.7%  Unlock6.6%
 Age 15 to 17  Unlock6.1%3.9%
 Age 18 to 203.5%  Unlock4.0%
 Age 21 to 24  Unlock1.5%5.2%
 Age 25 to 347.8%  Unlock13.8%
 Age 35 to 44  Unlock12.2%12.9%
 Age 45 to 5417.4%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 647.5%  Unlock6.3%
 Age 65 to 74  Unlock11.6%9.6%
 Age 75 to 844.0%  Unlock4.5%
 Age 85 and over  Unlock3.0%1.9%
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 Race
 Keller, TXMill Valley, CAUnited States
 White79.0%  Unlock59.4%
 Black  Unlock1.4%12.2%
 Asian5.3%  Unlock5.6%
 Native American  Unlock0.0%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock1.0%0.4%
 Two or More Races2.9%  Unlock3.2%
 Hispanic  Unlock3.0%18.4%
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 Marriage & Family
 Keller, TXMill Valley, CAUnited States
 Married Population67.8%  Unlock49.8%
     Currently Married  Unlock55.6%48.0%
 Married but Separated0.9%  Unlock1.8%
 Single Population  Unlock43.9%50.2%
 Never Married22.1%  Unlock33.8%
 Divorced  Unlock12.5%10.8%
 Widowed3.4%  Unlock5.6%
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 Household Size  Unlock2.522.60
 Households15,852  Unlock124,010,992
 Family Households  Unlock3,81480,755,759
     Married couple, w/children43.0%  Unlock30.5%
     Married couple, no children  Unlock49.5%42.9%
 Non Family Households3,024  Unlock43,255,233
     Single householder, w/children  Unlock9.8%15.8%
     Single householder, no children4.0%  Unlock10.8%
Reviews for Keller    14 Reviews

Grew up here and things are heading south quickly. Affordability? That's been thrown out the window since 2014. Traffic? Be prepared to sit through unsynchronized  More

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The WORST most invasive city council you could imagine.... they want to micro manage your entire property.... After living here for over 20 years now they are telling me  More

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What I love most about Keller is that it is a wonderful smaller town raise a  More

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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 16 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 17 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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