2026 Compare Cities People:
Walnut Creek, CA vs Siesta Key, FL

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Highlights
- Siesta Key is 0% more densely populated than Walnut Creek.
- People are 19.0% more likely to be married in Siesta Key.
- The Median Age is 19.3 years older in Siesta Key.
 Walnut Creek, CASiesta Key, FLUnited States
 Population  Unlock5,416329,725,481
 Female Population52.4%  Unlock50.5%
 Male Population47.6%  Unlock49.5%
 Median Age  Unlock67.138.4
 space3
 Population - 201064,376  Unlock309,327,143
 Population - 2000  Unlock7,150285,036,114
 Population - 199060,569  Unlock251,960,433
 Pop. 2000 to Now  Unlock-10.4%15.6%
 Pop. 1990 to Now15.5%  Unlock30.8%
 space4
 Population Density  Unlock2,311.693.4
 Land Area19.8  Unlock3,531,905.4
 Water Area  Unlock1.1264,836.8
 space
 Est. Total Population By Age
 Walnut Creek, CASiesta Key, FLUnited States
 Age 0 to 44.8%  Unlock5.9%
 Age 5 to 9  Unlock0.5%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  Unlock2.1%5.2%
 Age 25 to 3413.8%  Unlock13.8%
 Age 35 to 44  Unlock3.3%12.9%
 Age 45 to 5410.5%  Unlock12.6%
 Age 55 to 59  Unlock10.3%6.7%
 Age 60 to 645.9%  Unlock6.3%
 Age 65 to 74  Unlock24.9%9.6%
 Age 75 to 849.5%  Unlock4.5%
 Age 85 and over  Unlock7.1%1.9%
 space1
 Race
 Walnut Creek, CASiesta Key, FLUnited States
 White63.4%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian17.7%  Unlock5.6%
 Native American  Unlock0.4%0.6%
 Hawaiian, Pacific Islander0.4%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races6.0%  Unlock3.2%
 Hispanic  Unlock2.7%18.4%
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 Marriage & Family
 Walnut Creek, CASiesta Key, FLUnited States
 Married Population55.5%  Unlock49.8%
     Currently Married  Unlock65.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock34.0%50.2%
 Never Married25.6%  Unlock33.8%
 Divorced  Unlock11.8%10.8%
 Widowed8.4%  Unlock5.6%
 space5
 Household Size  Unlock1.842.60
 Households32,126  Unlock124,010,992
 Family Households  Unlock1,78880,755,759
     Married couple, w/children29.4%  Unlock30.5%
     Married couple, no children  Unlock84.8%42.9%
 Non Family Households13,738  Unlock43,255,233
     Single householder, w/children  Unlock3.1%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 8 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 8 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 Siesta Key    2 Reviews

May through October is another story! Heat, humidity and mozzies with 4 inch wingspans. Welcome to the Gulf  More

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Over 19 years ago

like any sub-tropical paradise, the climate is the best and the worst all rolled into one. Today is Dec. 28th, 2007, the temperature is 82, the breeze is on, life is as  More

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