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2025 Compare Cities People:
Santa Clara, CA vs Castro Valley, CA

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Highlights
- Castro Valley is 0% more densely populated than Santa Clara.
- People are 4.6% more likely to be married in Castro Valley.
- The Median Age is 8.4 years older in Castro Valley.
 Santa Clara, CACastro Valley, CAUnited States
 Population  Unlock66,324329,725,481
 Female Population47.8%  Unlock50.5%
 Male Population52.2%  Unlock49.5%
 Median Age  Unlock42.438.4
 space3
 Population - 2010116,857  Unlock309,327,143
 Population - 2000  Unlock57,292285,036,114
 Population - 199093,613  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.0%15.6%
 Pop. 1990 to Now40.0%  Unlock30.8%
 space4
 Population Density  Unlock3,997.893.4
 Land Area18.4  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 Santa Clara, CACastro Valley, CAUnited States
 Age 0 to 46.6%  Unlock5.9%
 Age 5 to 9  Unlock6.1%6.1%
 Age 10 to 144.2%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 204.8%  Unlock4.0%
 Age 21 to 24  Unlock3.5%5.2%
 Age 25 to 3422.4%  Unlock13.8%
 Age 35 to 44  Unlock14.4%12.9%
 Age 45 to 5411.6%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 644.5%  Unlock6.3%
 Age 65 to 74  Unlock10.4%9.6%
 Age 75 to 843.4%  Unlock4.5%
 Age 85 and over  Unlock2.4%1.9%
 space1
 Race
 Santa Clara, CACastro Valley, CAUnited States
 White30.2%  Unlock59.4%
 Black  Unlock9.3%12.2%
 Asian45.7%  Unlock5.6%
 Native American  Unlock0.5%0.6%
 Hawaiian, Pacific Islander0.7%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races4.3%  Unlock3.2%
 Hispanic  Unlock16.9%18.4%
 space2
 Marriage & Family
 Santa Clara, CACastro Valley, CAUnited States
 Married Population53.3%  Unlock49.8%
     Currently Married  Unlock54.5%48.0%
 Married but Separated1.6%  Unlock1.8%
 Single Population  Unlock44.2%50.2%
 Never Married37.0%  Unlock33.8%
 Divorced  Unlock8.4%10.8%
 Widowed3.2%  Unlock5.6%
 space5
 Household Size  Unlock2.902.60
 Households45,830  Unlock124,010,992
 Family Households  Unlock16,69280,755,759
     Married couple, w/children38.7%  Unlock30.5%
     Married couple, no children  Unlock45.3%42.9%
 Non Family Households15,775  Unlock43,255,233
     Single householder, w/children  Unlock11.2%15.8%
     Single householder, no children11.0%  Unlock10.8%
Voting
Reviews for Santa Clara    14 Reviews
Larry · 
Santa Clara CA is a wonderful place.
Over 4 years ago

Santa Clara, CA and the city government are great. The city has been for the most part very good to me. I grew up in Santa Clara and now that I have been away for two  More

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Alan · Santa Clara, CA
A fair and balanced review of Santa Clara
Over 8 years ago

I have lived in Santa Clara California most of my life so I consider myself to be an expert. The climate is wonderful. The price of housing is way above the national  More

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William · Santa Clara, CA
Best of Santa Clara
Over 10 years ago

Good Central Park and activities; City-owned power company provides lower cost power; home to many high-tech companies; city is  More

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Reviews for Castro Valley    7 Reviews
Ken · Walnut Creek, CA
2015 review of Castro Valley, CA
Over 10 years ago

CURMUDGEON - THANK YOU for your post. The most important part of your comment is your second paragraph. "Hodge-Podge" is the correct word for a lot of Castro  More

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Doug · Castro Valley, CA
Close to the big cities
Over 11 years ago

Kind of rural but close to Oakland and San  More

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Curmudgeon · Castro Valley, CA
Castro Valley Needs to Incorporate
Over 12 years ago

Castro Valley is the largest unincorporated "city" in the Bay Area. Over the years, several attempts have been made to incorporate, but they have all been defeated at  More

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Learn More About Santa Clara, California
Overview
Cost of Living
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Learn More About Castro Valley, California
Overview
Cost of Living
Job Market
Crime
Climate
Economy
Religion
Voting
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