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2026 Compare Cities People:
Bonsall, CA vs Castro Valley, CA

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Highlights
- Castro Valley is 0% more densely populated than Bonsall.
- People are 16.1% more likely to be married in Castro Valley.
- The Median Age is 4.0 years younger in Castro Valley.
 Bonsall, CACastro Valley, CAUnited States
 Population  Unlock66,324329,725,481
 Female Population51.3%  Unlock50.5%
 Male Population48.7%  Unlock49.5%
 Median Age  Unlock42.438.4
 space3
 Population - 20104,235  Unlock309,327,143
 Population - 2000  Unlock57,292285,036,114
 Population - 19901,881  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.0%15.6%
 Pop. 1990 to Now134.4%  Unlock30.8%
 space4
 Population Density  Unlock3,997.893.4
 Land Area13.4  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 Bonsall, CACastro Valley, CAUnited States
 Age 0 to 45.4%  Unlock5.9%
 Age 5 to 9  Unlock6.1%6.1%
 Age 10 to 145.3%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 205.7%  Unlock4.0%
 Age 21 to 24  Unlock3.5%5.2%
 Age 25 to 344.5%  Unlock13.8%
 Age 35 to 44  Unlock14.4%12.9%
 Age 45 to 5418.5%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 646.4%  Unlock6.3%
 Age 65 to 74  Unlock10.4%9.6%
 Age 75 to 843.7%  Unlock4.5%
 Age 85 and over  Unlock2.4%1.9%
 space1
 Race
 Bonsall, CACastro Valley, CAUnited States
 White69.0%  Unlock59.4%
 Black  Unlock9.3%12.2%
 Asian1.4%  Unlock5.6%
 Native American  Unlock0.5%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races3.4%  Unlock3.2%
 Hispanic  Unlock16.9%18.4%
 space2
 Marriage & Family
 Bonsall, CACastro Valley, CAUnited States
 Married Population48.1%  Unlock49.8%
     Currently Married  Unlock54.5%48.0%
 Married but Separated1.0%  Unlock1.8%
 Single Population  Unlock44.2%50.2%
 Never Married31.4%  Unlock33.8%
 Divorced  Unlock8.4%10.8%
 Widowed4.7%  Unlock5.6%
 space5
 Household Size  Unlock2.902.60
 Households1,702  Unlock124,010,992
 Family Households  Unlock16,69280,755,759
     Married couple, w/children34.6%  Unlock30.5%
     Married couple, no children  Unlock45.3%42.9%
 Non Family Households575  Unlock43,255,233
     Single householder, w/children  Unlock11.2%15.8%
     Single householder, no children14.0%  Unlock10.8%
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Reviews for Bonsall    0 Reviews

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Reviews for Castro Valley    7 Reviews
Ken · Walnut Creek, CA
2015 review of Castro Valley, CA
Over 11 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 12 years ago

Kind of rural but close to Oakland and San  More

   |    Reply
Curmudgeon · Castro Valley, CA
Castro Valley Needs to Incorporate
Over 13 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 Bonsall, California
Overview
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Learn More About Castro Valley, California
Overview
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