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2025 Compare Cities People:
Sunnyvale, CA vs Clayton, MO

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Highlights
- Clayton is 0% more densely populated than Sunnyvale.
- People are 29.5% less likely to be married in Clayton.
- The Median Age is 6.0 years younger in Clayton.
 Sunnyvale, CAClayton, MOUnited States
 Population  Unlock16,905329,725,481
 Female Population47.8%  Unlock50.5%
 Male Population52.2%  Unlock49.5%
 Median Age  Unlock29.238.4
 space3
 Population - 2010140,786  Unlock309,327,143
 Population - 2000  Unlock12,825285,036,114
 Population - 1990117,229  Unlock251,960,433
 Pop. 2000 to Now  Unlock30.8%15.6%
 Pop. 1990 to Now29.4%  Unlock30.8%
 space4
 Population Density  Unlock6,737.793.4
 Land Area22.0  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Sunnyvale, CAClayton, MOUnited States
 Age 0 to 47.0%  Unlock5.9%
 Age 5 to 9  Unlock4.7%6.1%
 Age 10 to 145.4%  Unlock6.6%
 Age 15 to 17  Unlock3.5%3.9%
 Age 18 to 201.7%  Unlock4.0%
 Age 21 to 24  Unlock7.8%5.2%
 Age 25 to 3423.1%  Unlock13.8%
 Age 35 to 44  Unlock10.8%12.9%
 Age 45 to 5411.9%  Unlock12.6%
 Age 55 to 59  Unlock5.8%6.7%
 Age 60 to 644.8%  Unlock6.3%
 Age 65 to 74  Unlock6.5%9.6%
 Age 75 to 843.4%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
 space1
 Race
 Sunnyvale, CAClayton, MOUnited States
 White28.9%  Unlock59.4%
 Black  Unlock7.7%12.2%
 Asian47.8%  Unlock5.6%
 Native American  Unlock0.1%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.7%0.4%
 Two or More Races4.5%  Unlock3.2%
 Hispanic  Unlock3.3%18.4%
 space2
 Marriage & Family
 Sunnyvale, CAClayton, MOUnited States
 Married Population57.1%  Unlock49.8%
     Currently Married  Unlock39.9%48.0%
 Married but Separated1.1%  Unlock1.8%
 Single Population  Unlock59.8%50.2%
 Never Married33.1%  Unlock33.8%
 Divorced  Unlock5.9%10.8%
 Widowed3.7%  Unlock5.6%
 space5
 Household Size  Unlock2.232.60
 Households57,565  Unlock124,010,992
 Family Households  Unlock3,21380,755,759
     Married couple, w/children41.3%  Unlock30.5%
     Married couple, no children  Unlock45.5%42.9%
 Non Family Households19,635  Unlock43,255,233
     Single householder, w/children  Unlock11.6%15.8%
     Single householder, no children9.4%  Unlock10.8%
Voting
Reviews for Sunnyvale    14 Reviews
Peter · Sunnyvale, CA
high tech jobs -vs- high cost housing
Over 6 years ago

At this point, I would only recommend moving to silicon valley for the job market. Sure, the weather is great and the restaurants offer huge variety. But the costs of  More

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Vefa · Sunnyvale, CA
Bad things happen to a once great city
Over 7 years ago

Like previous reviewer, tech company's tyranny over city gov and quality of living has negatively impacted a fantastic place to live. Climate, while super, is grossly  More

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Vefa · Sunnyvale, CA
Quality of life reduction
Over 7 years ago

I've lived here for 40 years. While the weather is fabulous, For the past ten years of high density housing mostly needed to house thousands of a young up coming tech  More

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Reviews for Clayton    3 Reviews
Roger · Saint Louis, MO
weather is great as long as you like humidity
Over 12 years ago

St Louis summers are hot and humid...Fall and spring are not very friendly to people with allergies.. Winter is  More

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Roger · Saint Louis, MO
Weather is great as long as you like humidity
Over 12 years ago

The weather in St Louis can be hot and humid in the summer. Cold in the  More

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Rachel · St. Louis, MO
Low Cost of Living in St. Louis
Over 19 years ago

St. Louis in general has an extremely affordable cost of living. Housing is under the nat'l average, as is gasoline. Food, restaurants and entertainment is all  More

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Learn More About Sunnyvale, California
Overview
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Learn More About Clayton, Missouri
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