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2025 Compare Cities People:
Castro Valley, CA vs Twain Harte, CA

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Highlights
- Twain Harte is 0% more densely populated than Castro Valley.
- People are 8.2% more likely to be married in Twain Harte.
- The Median Age is 9.9 years older in Twain Harte.
 Castro Valley, CATwain Harte, CAUnited States
 Population  Unlock2,471329,725,481
 Female Population51.4%  Unlock50.5%
 Male Population48.6%  Unlock49.5%
 Median Age  Unlock52.338.4
 space3
 Population - 201060,625  Unlock309,327,143
 Population - 2000  Unlock2,586285,036,114
 Population - 199048,619  Unlock251,960,433
 Pop. 2000 to Now  Unlock6.0%15.6%
 Pop. 1990 to Now33.1%  Unlock30.8%
 space4
 Population Density  Unlock668.093.4
 Land Area16.6  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Castro Valley, CATwain Harte, CAUnited States
 Age 0 to 45.1%  Unlock5.9%
 Age 5 to 9  Unlock3.9%6.1%
 Age 10 to 145.5%  Unlock6.6%
 Age 15 to 17  Unlock1.3%3.9%
 Age 18 to 201.9%  Unlock4.0%
 Age 21 to 24  Unlock4.7%5.2%
 Age 25 to 3412.2%  Unlock13.8%
 Age 35 to 44  Unlock8.6%12.9%
 Age 45 to 5414.3%  Unlock12.6%
 Age 55 to 59  Unlock7.4%6.7%
 Age 60 to 647.5%  Unlock6.3%
 Age 65 to 74  Unlock17.2%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock1.7%1.9%
 space1
 Race
 Castro Valley, CATwain Harte, CAUnited States
 White36.7%  Unlock59.4%
 Black  Unlock0.0%12.2%
 Asian31.2%  Unlock5.6%
 Native American  Unlock0.5%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.0%0.4%
 Two or More Races4.8%  Unlock3.2%
 Hispanic  Unlock13.2%18.4%
 space2
 Marriage & Family
 Castro Valley, CATwain Harte, CAUnited States
 Married Population55.8%  Unlock49.8%
     Currently Married  Unlock58.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock39.6%50.2%
 Never Married29.8%  Unlock33.8%
 Divorced  Unlock12.5%10.8%
 Widowed6.0%  Unlock5.6%
 space5
 Household Size  Unlock2.202.60
 Households22,467  Unlock124,010,992
 Family Households  Unlock70680,755,759
     Married couple, w/children35.0%  Unlock30.5%
     Married couple, no children  Unlock61.0%42.9%
 Non Family Households5,775  Unlock43,255,233
     Single householder, w/children  Unlock2.1%15.8%
     Single householder, no children8.5%  Unlock10.8%
Voting
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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Reviews for Twain Harte    2 Reviews
Mark · Twain Harte, CA
Sierra Bliss
Over 4 years ago

We have been coming to Twain Harte for over 50 years. We moved here in 2018 and have enjoyed every minute of it! The weather is just excellent, great change of seasons  More

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Tracy · Twain Harte, CA
Life in Twain Harte
Over 15 years ago

Twain Harte is a lovely small town in the Sierra Foothills. This county is very close knit and watch out for each other. Its difficult to make a living but the beauty  More

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Learn More About Castro Valley, California
Overview
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Learn More About Twain Harte, California
Overview
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Voting
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