2025 Compare Cities People:
Walnut Creek, CA vs San Mateo, CA

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Highlights
- San Mateo is 0% more densely populated than Walnut Creek.
- People are 5.3% less likely to be married in San Mateo.
- The Median Age is 10.1 years younger in San Mateo.
 Walnut Creek, CASan Mateo, CAUnited States
 Population  Unlock105,087329,725,481
 Female Population52.4%  Unlock50.5%
 Male Population47.6%  Unlock49.5%
 Median Age  Unlock37.738.4
 space3
 Population - 201064,376  Unlock309,327,143
 Population - 2000  Unlock92,482285,036,114
 Population - 199060,569  Unlock251,960,433
 Pop. 2000 to Now  Unlock10.7%15.6%
 Pop. 1990 to Now15.5%  Unlock30.8%
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 Population Density  Unlock8,632.893.4
 Land Area19.8  Unlock3,531,905.4
 Water Area  Unlock3.7264,836.8
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 Est. Total Population By Age
 Walnut Creek, CASan Mateo, CAUnited States
 Age 0 to 44.8%  Unlock5.9%
 Age 5 to 9  Unlock5.6%6.1%
 Age 10 to 143.8%  Unlock6.6%
 Age 15 to 17  Unlock2.7%3.9%
 Age 18 to 202.0%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3413.8%  Unlock13.8%
 Age 35 to 44  Unlock15.4%12.9%
 Age 45 to 5410.5%  Unlock12.6%
 Age 55 to 59  Unlock5.8%6.7%
 Age 60 to 645.9%  Unlock6.3%
 Age 65 to 74  Unlock8.0%9.6%
 Age 75 to 849.5%  Unlock4.5%
 Age 85 and over  Unlock2.8%1.9%
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 Race
 Walnut Creek, CASan Mateo, CAUnited States
 White63.4%  Unlock59.4%
 Black  Unlock1.9%12.2%
 Asian17.7%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.4%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races6.0%  Unlock3.2%
 Hispanic  Unlock24.1%18.4%
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 Marriage & Family
 Walnut Creek, CASan Mateo, CAUnited States
 Married Population55.5%  Unlock49.8%
     Currently Married  Unlock51.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock47.4%50.2%
 Never Married25.6%  Unlock33.8%
 Divorced  Unlock8.9%10.8%
 Widowed8.4%  Unlock5.6%
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 Household Size  Unlock2.582.60
 Households32,126  Unlock124,010,992
 Family Households  Unlock25,42080,755,759
     Married couple, w/children29.4%  Unlock30.5%
     Married couple, no children  Unlock43.3%42.9%
 Non Family Households13,738  Unlock43,255,233
     Single householder, w/children  Unlock10.4%15.8%
     Single householder, no children7.5%  Unlock10.8%
Reviews for Walnut Creek    16 Reviews

Apart from the congestion, Walnut Creek is one of the best places in the San Francisco Bay Area to live. It is one of the most compact/walkable cities in the entire area  More

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Over 7 years ago

Almost all of Walnut Creek water comes from Pardee dam through an enclosed pipeline. That water is direct from the high Sierras. Among the best water quality in the  More

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Over 7 years ago

I grew up in Southern California and am no stranger to a more inland California climate. Before moving to WC I lived in San Francisco for 15 years where it is obviously  More

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Reviews for San Mateo    12 Reviews

I have lived in San Mateo since 2013. It has seen tremendous growth, lots of new restaurants which have become progressively more high-end though there is ample  More

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I'm a native of California. I have lived in the southern part of the state and the northern part of the state for most of my life. I have spent the last 29 years in  More

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Over 15 years ago

San Mateo has a diverse mix of people, a pleasant climate, a very pleasant downtown park with lots going on, and pretty much whatever you need handy. It's not far to  More

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