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2025 Compare Cities People:
Hayward, CA vs Castro Valley, CA

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Highlights
- Castro Valley is 0% more densely populated than Hayward.
- People are 15.2% more likely to be married in Castro Valley.
- The Median Age is 5.8 years older in Castro Valley.
 Hayward, CACastro Valley, CAUnited States
 Population  Unlock66,324329,725,481
 Female Population49.3%  Unlock50.5%
 Male Population50.7%  Unlock49.5%
 Median Age  Unlock42.438.4
 space3
 Population - 2010144,662  Unlock309,327,143
 Population - 2000  Unlock57,292285,036,114
 Population - 1990111,498  Unlock251,960,433
 Pop. 2000 to Now  Unlock13.0%15.6%
 Pop. 1990 to Now41.7%  Unlock30.8%
 space4
 Population Density  Unlock3,997.893.4
 Land Area45.5  Unlock3,531,905.4
 Water Area  Unlock0.2264,836.8
 space
 Est. Total Population By Age
 Hayward, CACastro Valley, CAUnited States
 Age 0 to 45.9%  Unlock5.9%
 Age 5 to 9  Unlock6.1%6.1%
 Age 10 to 145.9%  Unlock6.6%
 Age 15 to 17  Unlock4.3%3.9%
 Age 18 to 203.7%  Unlock4.0%
 Age 21 to 24  Unlock3.5%5.2%
 Age 25 to 3417.3%  Unlock13.8%
 Age 35 to 44  Unlock14.4%12.9%
 Age 45 to 5413.0%  Unlock12.6%
 Age 55 to 59  Unlock7.8%6.7%
 Age 60 to 645.9%  Unlock6.3%
 Age 65 to 74  Unlock10.4%9.6%
 Age 75 to 843.5%  Unlock4.5%
 Age 85 and over  Unlock2.4%1.9%
 space1
 Race
 Hayward, CACastro Valley, CAUnited States
 White15.9%  Unlock59.4%
 Black  Unlock9.3%12.2%
 Asian28.7%  Unlock5.6%
 Native American  Unlock0.5%0.6%
 Hawaiian, Pacific Islander1.9%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races4.8%  Unlock3.2%
 Hispanic  Unlock16.9%18.4%
 space2
 Marriage & Family
 Hayward, CACastro Valley, CAUnited States
 Married Population48.4%  Unlock49.8%
     Currently Married  Unlock54.5%48.0%
 Married but Separated1.8%  Unlock1.8%
 Single Population  Unlock44.2%50.2%
 Never Married38.5%  Unlock33.8%
 Divorced  Unlock8.4%10.8%
 Widowed5.0%  Unlock5.6%
 space5
 Household Size  Unlock2.902.60
 Households49,524  Unlock124,010,992
 Family Households  Unlock16,69280,755,759
     Married couple, w/children34.5%  Unlock30.5%
     Married couple, no children  Unlock45.3%42.9%
 Non Family Households13,228  Unlock43,255,233
     Single householder, w/children  Unlock11.2%15.8%
     Single householder, no children15.2%  Unlock10.8%
Voting
Reviews for Hayward    4 Reviews
Robert · Hayward, CA
A CITY OF NEIGHBORHOODS, CONVENIENT TO THE SF BAY
Over 6 years ago

I've lived in Hayward for 20 years. Traditionally a working  More

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stan · Hayward, CA
Weather,Water,and everything is close. But....
Over 7 years ago

Hetchy Hechy water is very pure,the summers are about 78f..warm enough. Winters are sunny for the most part and by average.One University and one College in this small  More

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MEILING · Hayward, CA
I have no car
Over 11 years ago

convenient BART and bus if you have no  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 Hayward, California
Overview
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Learn More About Castro Valley, California
Overview
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