2026 Compare Cities People:
Castro Valley, CA vs Red Bluff, CA

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Highlights
- Red Bluff is 0% more densely populated than Castro Valley.
- People are 31.9% less likely to be married in Red Bluff.
- The Median Age is 8.5 years younger in Red Bluff.
 Castro Valley, CARed Bluff, CAUnited States
 Population  Unlock14,557329,725,481
 Female Population51.4%  Unlock50.5%
 Male Population48.6%  Unlock49.5%
 Median Age  Unlock33.938.4
 space3
 Population - 201060,625  Unlock309,327,143
 Population - 2000  Unlock13,147285,036,114
 Population - 199048,619  Unlock251,960,433
 Pop. 2000 to Now  Unlock7.4%15.6%
 Pop. 1990 to Now33.1%  Unlock30.8%
 space4
 Population Density  Unlock1,925.393.4
 Land Area16.6  Unlock3,531,905.4
 Water Area  Unlock0.1264,836.8
 space
 Est. Total Population By Age
 Castro Valley, CARed Bluff, CAUnited States
 Age 0 to 45.1%  Unlock5.9%
 Age 5 to 9  Unlock8.2%6.1%
 Age 10 to 145.5%  Unlock6.6%
 Age 15 to 17  Unlock6.2%3.9%
 Age 18 to 201.9%  Unlock4.0%
 Age 21 to 24  Unlock5.9%5.2%
 Age 25 to 3412.2%  Unlock13.8%
 Age 35 to 44  Unlock16.0%12.9%
 Age 45 to 5414.3%  Unlock12.6%
 Age 55 to 59  Unlock4.1%6.7%
 Age 60 to 647.5%  Unlock6.3%
 Age 65 to 74  Unlock8.6%9.6%
 Age 75 to 844.4%  Unlock4.5%
 Age 85 and over  Unlock1.6%1.9%
 space1
 Race
 Castro Valley, CARed Bluff, CAUnited States
 White36.7%  Unlock59.4%
 Black  Unlock2.7%12.2%
 Asian31.2%  Unlock5.6%
 Native American  Unlock1.3%0.6%
 Hawaiian, Pacific Islander0.2%  Unlock0.2%
 Other  Unlock0.3%0.4%
 Two or More Races4.8%  Unlock3.2%
 Hispanic  Unlock22.8%18.4%
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 Marriage & Family
 Castro Valley, CARed Bluff, CAUnited States
 Married Population55.8%  Unlock49.8%
     Currently Married  Unlock34.3%48.0%
 Married but Separated1.3%  Unlock1.8%
 Single Population  Unlock62.0%50.2%
 Never Married29.8%  Unlock33.8%
 Divorced  Unlock18.6%10.8%
 Widowed6.0%  Unlock5.6%
 space5
 Household Size  Unlock2.432.60
 Households22,467  Unlock124,010,992
 Family Households  Unlock3,42080,755,759
     Married couple, w/children35.0%  Unlock30.5%
     Married couple, no children  Unlock21.1%42.9%
 Non Family Households5,775  Unlock43,255,233
     Single householder, w/children  Unlock38.5%15.8%
     Single householder, no children8.5%  Unlock10.8%
Reviews for Castro Valley    7 Reviews

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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Over 12 years ago

Kind of rural but close to Oakland and San  More

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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 Red Bluff    8 Reviews

I grew up in this town and when I moved away - out of CA, living all across the US - I could not believe how much kinder people were in every other state and city that I  More

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Over 11 years ago

I grew up in this beautiful little town. It is located on the Sacramento River with the river coming right through the town. I don't live there anymore but have family  More

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Red Bluff,,, I was forced to move there when I married my husband. I begged to move to a real Californian town, such as San Diego. But No... Red Neck had to move home  More

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