2025 Compare Cities People:
Grass Valley, CA vs Diamond Bar, CA

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Highlights
- Diamond Bar is 0% more densely populated than Grass Valley.
- People are 64.5% more likely to be married in Diamond Bar.
- The Median Age is 3.3 years younger in Diamond Bar.
 Grass Valley, CADiamond Bar, CAUnited States
 Population  Unlock55,339329,725,481
 Female Population55.1%  Unlock50.5%
 Male Population44.9%  Unlock49.5%
 Median Age  Unlock43.738.4
 space3
 Population - 201012,876  Unlock309,327,143
 Population - 2000  Unlock56,287285,036,114
 Population - 19909,048  Unlock251,960,433
 Pop. 2000 to Now  Unlock-2.5%15.6%
 Pop. 1990 to Now41.1%  Unlock30.8%
 space4
 Population Density  Unlock3,721.593.4
 Land Area5.2  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Grass Valley, CADiamond Bar, CAUnited States
 Age 0 to 46.0%  Unlock5.9%
 Age 5 to 9  Unlock5.4%6.1%
 Age 10 to 147.4%  Unlock6.6%
 Age 15 to 17  Unlock3.4%3.9%
 Age 18 to 201.0%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 349.9%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 549.6%  Unlock12.6%
 Age 55 to 59  Unlock8.2%6.7%
 Age 60 to 647.3%  Unlock6.3%
 Age 65 to 74  Unlock12.6%9.6%
 Age 75 to 847.2%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
 space1
 Race
 Grass Valley, CADiamond Bar, CAUnited States
 White78.6%  Unlock59.4%
 Black  Unlock4.0%12.2%
 Asian1.7%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.0%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races8.0%  Unlock3.2%
 Hispanic  Unlock17.8%18.4%
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 Marriage & Family
 Grass Valley, CADiamond Bar, CAUnited States
 Married Population35.2%  Unlock49.8%
     Currently Married  Unlock57.2%48.0%
 Married but Separated2.3%  Unlock1.8%
 Single Population  Unlock42.2%50.2%
 Never Married28.3%  Unlock33.8%
 Divorced  Unlock7.6%10.8%
 Widowed14.3%  Unlock5.6%
 space5
 Household Size  Unlock3.102.60
 Households6,495  Unlock124,010,992
 Family Households  Unlock14,44680,755,759
     Married couple, w/children24.8%  Unlock30.5%
     Married couple, no children  Unlock47.1%42.9%
 Non Family Households3,605  Unlock43,255,233
     Single householder, w/children  Unlock8.7%15.8%
     Single householder, no children16.6%  Unlock10.8%
Reviews for Grass Valley    15 Reviews

I've lived many places in California. I've now lived in Grass Valley for 2 years. Grass Valley and it's sister Nevada City are adorable little towns full of history and  More

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Grass valley has become a sad place to live. I was born and raised here and can no longer afford to raise my small family here. Look up the median annual wage and the  More

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I'm 25 years old and I've lived in this town all of my life, and I'm saving every single dollar I make to leave here and never come back. It's a shame, because at one  More

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Reviews for Diamond Bar    3 Reviews

Over 14 years ago

Beautiful city and great place to raise a family. The worst part of Diamond Bar would be some of the best places to live in other cities. Diamond Bar has some of the  More

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Over 14 years ago

The city is centrally located to riverside, San Bernardino, Orange County and Downtown La. It is very scenic with beautiful hills, great schools and within easy reach,  More

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Over 15 years ago

This is a very quiet area about 30 mile east of downtown Los Angeles. I'm a bit concerned about what effect a possible new NFL stadium in the City of Industry CA will  More

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