2025 Compare Cities People:
Walnut Creek, CA vs Costa Mesa, CA

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Highlights
- Costa Mesa is 0% more densely populated than Walnut Creek.
- People are 18.8% less likely to be married in Costa Mesa.
- The Median Age is 11.8 years younger in Costa Mesa.
 Walnut Creek, CACosta Mesa, CAUnited States
 Population  Unlock112,148329,725,481
 Female Population52.4%  Unlock50.5%
 Male Population47.6%  Unlock49.5%
 Median Age  Unlock3638.4
 space3
 Population - 201064,376  Unlock309,327,143
 Population - 2000  Unlock108,724285,036,114
 Population - 199060,569  Unlock251,960,433
 Pop. 2000 to Now  Unlock3.4%15.6%
 Pop. 1990 to Now15.5%  Unlock30.8%
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 Population Density  Unlock7,099.893.4
 Land Area19.8  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
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 Est. Total Population By Age
 Walnut Creek, CACosta Mesa, CAUnited States
 Age 0 to 44.8%  Unlock5.9%
 Age 5 to 9  Unlock4.8%6.1%
 Age 10 to 143.8%  Unlock6.6%
 Age 15 to 17  Unlock3.2%3.9%
 Age 18 to 202.0%  Unlock4.0%
 Age 21 to 24  Unlock5.1%5.2%
 Age 25 to 3413.8%  Unlock13.8%
 Age 35 to 44  Unlock15.1%12.9%
 Age 45 to 5410.5%  Unlock12.6%
 Age 55 to 59  Unlock6.4%6.7%
 Age 60 to 645.9%  Unlock6.3%
 Age 65 to 74  Unlock7.5%9.6%
 Age 75 to 849.5%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
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 Race
 Walnut Creek, CACosta Mesa, CAUnited States
 White63.4%  Unlock59.4%
 Black  Unlock1.3%12.2%
 Asian17.7%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.4%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races6.0%  Unlock3.2%
 Hispanic  Unlock35.9%18.4%
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 Marriage & Family
 Walnut Creek, CACosta Mesa, CAUnited States
 Married Population55.5%  Unlock49.8%
     Currently Married  Unlock43.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock54.9%50.2%
 Never Married25.6%  Unlock33.8%
 Divorced  Unlock10.6%10.8%
 Widowed8.4%  Unlock5.6%
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 Household Size  Unlock2.682.60
 Households32,126  Unlock124,010,992
 Family Households  Unlock24,50380,755,759
     Married couple, w/children29.4%  Unlock30.5%
     Married couple, no children  Unlock40.8%42.9%
 Non Family Households13,738  Unlock43,255,233
     Single householder, w/children  Unlock14.8%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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Start Your Review of Walnut Creek

Reviews for Costa Mesa    8 Reviews

Over 15 years ago

Costa mesa has awesome shopping but is way too crowded and I have had 3 cars stolen in the past 5 years along with countless break-ins and theft. Expensive. Close to  More

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Over 16 years ago

Costa Mesa has a near perfect climate . . . plenty of sun but rarely over 100 degrees (our house doesn't even have AC). Nestled between Newport Beach and Huntington  More

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We have a good amount of low-income, medium-income, and relatively high-income  More

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Start Your Review of Costa Mesa


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