2025 Compare Cities People:
Rancho Cucamonga, CA vs Diamond Bar, CA

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Highlights
- Diamond Bar is 0% more densely populated than Rancho Cucamonga.
- People are 8.7% more likely to be married in Diamond Bar.
- The Median Age is 6.8 years older in Diamond Bar.
 Rancho Cucamonga, CADiamond Bar, CAUnited States
 Population  Unlock55,339329,725,481
 Female Population50.6%  Unlock50.5%
 Male Population49.4%  Unlock49.5%
 Median Age  Unlock43.738.4
 space3
 Population - 2010166,361  Unlock309,327,143
 Population - 2000  Unlock56,287285,036,114
 Population - 1990101,409  Unlock251,960,433
 Pop. 2000 to Now  Unlock-2.5%15.6%
 Pop. 1990 to Now76.4%  Unlock30.8%
 space4
 Population Density  Unlock3,721.593.4
 Land Area40.1  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Rancho Cucamonga, CADiamond Bar, CAUnited States
 Age 0 to 47.2%  Unlock5.9%
 Age 5 to 9  Unlock5.4%6.1%
 Age 10 to 147.0%  Unlock6.6%
 Age 15 to 17  Unlock3.4%3.9%
 Age 18 to 203.4%  Unlock4.0%
 Age 21 to 24  Unlock4.1%5.2%
 Age 25 to 3415.5%  Unlock13.8%
 Age 35 to 44  Unlock12.4%12.9%
 Age 45 to 5414.4%  Unlock12.6%
 Age 55 to 59  Unlock8.2%6.7%
 Age 60 to 646.4%  Unlock6.3%
 Age 65 to 74  Unlock12.6%9.6%
 Age 75 to 843.2%  Unlock4.5%
 Age 85 and over  Unlock1.8%1.9%
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 Race
 Rancho Cucamonga, CADiamond Bar, CAUnited States
 White33.6%  Unlock59.4%
 Black  Unlock4.0%12.2%
 Asian14.5%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander0.1%  Unlock0.2%
 Other  Unlock0.4%0.4%
 Two or More Races3.8%  Unlock3.2%
 Hispanic  Unlock17.8%18.4%
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 Marriage & Family
 Rancho Cucamonga, CADiamond Bar, CAUnited States
 Married Population53.2%  Unlock49.8%
     Currently Married  Unlock57.2%48.0%
 Married but Separated1.9%  Unlock1.8%
 Single Population  Unlock42.2%50.2%
 Never Married32.4%  Unlock33.8%
 Divorced  Unlock7.6%10.8%
 Widowed4.5%  Unlock5.6%
 space5
 Household Size  Unlock3.102.60
 Households56,380  Unlock124,010,992
 Family Households  Unlock14,44680,755,759
     Married couple, w/children32.7%  Unlock30.5%
     Married couple, no children  Unlock47.1%42.9%
 Non Family Households13,168  Unlock43,255,233
     Single householder, w/children  Unlock8.7%15.8%
     Single householder, no children13.0%  Unlock10.8%
Reviews for Rancho Cucamonga    11 Reviews

I lived in rancho for a few years and I felt safe the city was clean every thing was at your finger tips Walmart target lots of fast foods  More

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Full of Republicans I hate the city I’m moving to Palm Springs the people here are ridiculous caring Trump flags making fun of me in the city a bunch of Lunitics.  More

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Over 12 years ago

Of all the homes or places of where I lived throughout my lifetime, I especially remember Rancho Cucamunga, CA. But this city's name when I was there was Alta Loma, and  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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