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2025 Compare Cities People:
Los Alamos, CA vs Rancho Cucamonga, CA

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Highlights
- Rancho Cucamonga is 0% more densely populated than Los Alamos.
- People are 6.4% less likely to be married in Rancho Cucamonga.
- The Median Age is 8.4 years younger in Rancho Cucamonga.
 Los Alamos, CARancho Cucamonga, CAUnited States
 Population  Unlock173,946329,725,481
 Female Population62.3%  Unlock50.5%
 Male Population37.7%  Unlock49.5%
 Median Age  Unlock36.938.4
 space3
 Population - 20101,252  Unlock309,327,143
 Population - 2000  Unlock127,743285,036,114
 Population - 1990962  Unlock251,960,433
 Pop. 2000 to Now  Unlock40.0%15.6%
 Pop. 1990 to Now51.4%  Unlock30.8%
 space4
 Population Density  Unlock4,336.093.4
 Land Area3.9  Unlock3,531,905.4
 Water Area  Unlock0.0264,836.8
 space
 Est. Total Population By Age
 Los Alamos, CARancho Cucamonga, CAUnited States
 Age 0 to 44.4%  Unlock5.9%
 Age 5 to 9  Unlock5.5%6.1%
 Age 10 to 140.0%  Unlock6.6%
 Age 15 to 17  Unlock3.8%3.9%
 Age 18 to 204.7%  Unlock4.0%
 Age 21 to 24  Unlock5.1%5.2%
 Age 25 to 341.9%  Unlock13.8%
 Age 35 to 44  Unlock12.3%12.9%
 Age 45 to 5411.1%  Unlock12.6%
 Age 55 to 59  Unlock6.7%6.7%
 Age 60 to 647.9%  Unlock6.3%
 Age 65 to 74  Unlock7.9%9.6%
 Age 75 to 8410.9%  Unlock4.5%
 Age 85 and over  Unlock1.5%1.9%
 space1
 Race
 Los Alamos, CARancho Cucamonga, CAUnited States
 White51.6%  Unlock59.4%
 Black  Unlock9.2%12.2%
 Asian1.1%  Unlock5.6%
 Native American  Unlock0.2%0.6%
 Hawaiian, Pacific Islander5.6%  Unlock0.2%
 Other  Unlock0.6%0.4%
 Two or More Races13.0%  Unlock3.2%
 Hispanic  Unlock38.1%18.4%
 space2
 Marriage & Family
 Los Alamos, CARancho Cucamonga, CAUnited States
 Married Population56.8%  Unlock49.8%
     Currently Married  Unlock51.4%48.0%
 Married but Separated0.0%  Unlock1.8%
 Single Population  Unlock46.8%50.2%
 Never Married18.3%  Unlock33.8%
 Divorced  Unlock9.9%10.8%
 Widowed12.0%  Unlock5.6%
 space5
 Household Size  Unlock3.032.60
 Households491  Unlock124,010,992
 Family Households  Unlock43,21280,755,759
     Married couple, w/children38.4%  Unlock30.5%
     Married couple, no children  Unlock40.7%42.9%
 Non Family Households129  Unlock43,255,233
     Single householder, w/children  Unlock13.6%15.8%
     Single householder, no children20.7%  Unlock10.8%
Voting
Reviews for Los Alamos    3 Reviews
Joe · Los Alamos, CA
Crappy Town
Over 12 years ago

This town sucks.The people are snobby.The cost of living is high.Very busy town with lots of semis driving through town going very fast.I do not recommend moving here.I  More

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Joe · Los Alamos, CA
Crappy Town
Over 12 years ago

This town sucks.The people are snobby.The cost of living is high.Very busy town with lots of semis driving through town going very fast.I do not recommend moving here.I  More

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Joe · Los Alamos, CA
Crappy town
Over 12 years ago

I hate this town.I do not recommend moving here.Cost of Living is very high and not worth it.I can hardly wait to  More

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Reviews for Rancho Cucamonga    11 Reviews
James · Spokane Valley, WA
Why rancho cucamonga is a good city
Over 3 years ago

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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Clay · Rancho Cucamonga, CA
Republicans it’s not liberal
Over 4 years ago

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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Stacey · Tampa, FL
Childhood Home
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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Learn More About Los Alamos, California
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Learn More About Rancho Cucamonga, California
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